MP Forest Guard/Jail Prahari Combined Exam Official Paper (Held On: 19 Jun, 2023 Shift 3) (Previous Year Paper)

The correct answer is Jotedars.

Key Points

• Haoladars were a class of substantial tenure holders or rich peasants primarily found in the East Bengal region, particularly in districts like Bakarganj (now in Bangladesh), during the British Legacy.
• They are categorized under the broader group of Jotedars, who were wealthy peasants owning vast areas of land. While Zamindars often lived in cities as absentee landlords, Haoladars and Jotedars lived in the villages and exercised direct control over the local agrarian economy.
• The term Haoladar is derived from "Haola," meaning a "charge" or "trust," signifying their role as holders of specific land tenures under the Zamindari system.
• Their primary function involved managing land, providing loans to poor ryots (peasants), and controlling local trade. They acted as intermediaries between the Zamindars and the actual tillers of the soil.
• In the social hierarchy of Bengal, they held a powerful position, often resisting the authority of Zamindars and mobilizing sharecroppers to protect their own interests. Hence, the option identifying them as Jotedars is correct.

Additional Information

• Jotedars:
• By the late 18th century, while many Zamindars were facing a crisis due to the high revenue demands of the Permanent Settlement (1793), a group of rich peasants known as Jotedars was consolidating their position.
• In North Bengal, they were called Jotedars, but in other parts, they were known as Haoladars, Gantidars, or Mandals.
• They owned thousands of acres of land and controlled local moneylending and grain trade.
• Zamindars:
• These were the revenue collectors appointed by the British East India Company under the Permanent Settlement.
• Unlike Haoladars, they were responsible for paying a fixed amount of land revenue to the state and often suffered when ryots defaulted on payments.
• Nayars:
• This refers to a matrilineal caste in Kerala (South India). They were historically warriors and landed gentry but are not related to the agrarian structure of Bengal or the term Haoladar.
• Governors:
• In the British Raj, Governors were high-ranking administrative officials representing the Crown in provinces, having no direct relation to the local village-level land tenure terms like Haoladar.

Important Points

• Geographic Location: The term Haoladar was most specific to South-East Bengal (modern-day Bangladesh), whereas Jotedar was more prevalent in North Bengal.
• Sub-tenures: Below the Haoladars, there were often further sub-layers of tenants known as Nim-haoladars and Osat-haoladars, showcasing a complex multi-tiered land tenure system.
• Power Dynamics: Jotedars (and Haoladars) were often more influential in the village than Zamindars because they stayed on the spot and had direct patron-client relationships with the sharecroppers (known as adhiyars or bargadars).
• Historical Context: This class grew significantly after the 1790s, benefiting from the commercialization of agriculture and the rigidities of the British land revenue laws which weakened the traditional aristocracy.

The correct answer is Toward faster and more inclusive growth.

Key Points

• The Eleventh Five-Year Plan of India was in operation from the year 2007 to 2012. Its main vision was to achieve a growth process that was both rapid and reached the marginalized sections of society.
• The theme of the Eleventh Five-Year Plan was "Toward faster and more inclusive growth". This theme was chosen to ensure that the benefits of high GDP growth were shared more equitably across different regions and social groups. Hence, statement D is correct.
• The concept of "Minimum need" (Option A) was primarily the cornerstone of the Fifth Five-Year Plan (1974-1978), which launched the Minimum Needs Programme (MNP) to provide basic social services. Hence, statement A is incorrect.
• While the "Revival of agriculture" (Option C) was a major objective of the Eleventh Plan, aiming for a 4% growth rate in the agricultural sector, it was not the overarching theme of the entire plan. Hence, statement C is incorrect.
• The plan was prepared by C. Rangarajan, a noted economist and former Governor of the Reserve Bank of India.
• It aimed to increase the GDP growth rate to 9% per annum, though it was later revised due to the global economic slowdown.

Additional Information

• Evolution of Planning in India: The Planning Commission was established in March 1950 as an advisory body to formulate Five-Year Plans for India's economic development. The first plan was launched in 1951.
• Transition to NITI Aayog: On 1st January 2015, the Government of India replaced the Planning Commission with the NITI Aayog (National Institution for Transforming India) to serve as a policy Think Tank and promote Cooperative Federalism.
• Twelfth Five-Year Plan (2012-2017): This was the final Five-Year Plan in India. Its theme was "Faster, More Inclusive and Sustainable Growth", adding the dimension of environmental sustainability to the Eleventh Plan's goals.
• Inclusive Growth Objectives: Under the Eleventh Plan, "inclusion" referred to the empowerment of Scheduled Castes (SC), Scheduled Tribes (ST), Other Backward Classes (OBC), Minorities, and Women.
• Significant Programs: Several major social sector programs like the National Rural Health Mission (NRHM) and the Integrated Child Development Services (ICDS) received significant funding during this period to improve human development indicators.

Important Points

• Economic Targets: The Eleventh Plan targeted an industrial growth rate of 10% to 11% and a service sector growth rate of 9% to 11%.
• Education Goals: It aimed to reduce the dropout rate in primary schools and increase the literacy rate to 85% by the end of the plan period in 2012.
• Health and Nutrition: One of the critical targets was to reduce the Infant Mortality Rate (IMR) to 28 per 1000 live births and the Total Fertility Rate (TFR) to 2.1.
• Poverty Reduction: The plan aimed to reduce the head-count ratio of consumption poverty by 10 percentage points.
• Environment: It set a goal to increase forest and tree cover by 5 percentage points and ensure that all rivers met the "B" class water quality standards.
• Employment: The plan envisioned the creation of 70 million new work opportunities to address the growing workforce in India.

The correct answer is Sixth five year plan.

Key Points

• The Planning Commission of India introduced decentralized planning for the first time during the Sixth Five-Year Plan, which spanned from 1980 to 1985. This shift was aimed at involving local authorities and the public in the planning process to ensure that development reached the grassroots level.
• The Sixth Five-Year Plan moved away from the traditional top-down approach to a bottom-up approach, emphasizing district-level planning as the primary unit for implementation. Hence, the statement regarding the Sixth Five-Year Plan being the period of introduction is correct.
• This decentralization was largely based on the recommendations of the Dantwala Committee (1978), which focused on block-level planning, and the Hanumantha Rao Committee (1984), which advocated for district-level planning. Hence, the statement regarding the origin of these recommendations is correct.
• During this period, the government launched the Integrated Rural Development Programme (IRDP) in 1980, which served as a major instrument for decentralized rural development and poverty alleviation. Hence, the statement regarding the role of IRDP in decentralization is correct.
• The plan aimed at a growth rate of 5.2%, but it successfully achieved a growth rate of 5.7%, making it one of the more successful plans in India's economic history. Hence, the statement regarding the achievement of the Sixth Plan is correct.

Additional Information

• Fifth Five-Year Plan (1974–1978): This plan focused on Garibi Hatao (Removal of Poverty) and Self-Reliance. It was terminated one year before its scheduled end by the Janata Party government in 1978. It laid the groundwork for social security but did not formalize decentralized planning.
• Seventh Five-Year Plan (1985–1990): This plan followed the Sixth Plan and focused on food, work, and productivity. It emphasized social justice and technological upgrades in industry. While it continued decentralized efforts, it was not the first to introduce them.
• Tenth Five-Year Plan (2002–2007): This plan was much later in the timeline and aimed to double the per capita income of India in 10 years. It also aimed to reduce the poverty ratio to 15% by 2007 and increase the literacy rate.
• Planning Commission of India: Established on March 15, 1950, it was the apex body for formulating Five-Year Plans. It was chaired by the Prime Minister. It was later replaced by the NITI Aayog on January 1, 2015, which operates on the principle of Cooperative Federalism.

Important Points

• 73rd and 74th Constitutional Amendment Acts: While the Sixth Plan introduced the concept of decentralized planning, it was the 73rd and 74th Amendments in 1992 that gave constitutional status to Panchayati Raj Institutions (PRIs) and Urban Local Bodies (ULBs).
• District Planning Committees (DPCs): Under Article 243ZD of the Constitution, DPCs were mandated to consolidate plans prepared by Panchayats and Municipalities in the district, further strengthening the decentralized framework envisioned in the early 1980s.
• Shift in Ideology: Decentralized planning was necessary to address regional imbalances and ensure that marginalized communities, including Scheduled Castes (SC) and Scheduled Tribes (ST), had a say in their own development.
• Implementation Agencies: Currently, District Rural Development Agencies (DRDA) and local Gram Sabhas are the primary functional units that carry forward the legacy of decentralized planning introduced during the Sixth Plan.

The correct answer is Central Government.

Key Points

• The Governor and Deputy Governors of the Reserve Bank of India (RBI) are appointed by the Central Government of India. This authority is derived from the Reserve Bank of India Act, 1934.
• As per Section 8(1)(a) of the RBI Act, 1934, the Central Board of the Bank shall consist of a Governor and not more than four Deputy Governors to be appointed by the Central Government.
• The selection process is governed by the Financial Sector Regulatory Appointment Search Committee (FSRASC). This committee is headed by the Cabinet Secretary of India and includes other experts.
• The FSRASC recommends suitable candidates to the Appointments Committee of the Cabinet (ACC). The ACC, which is headed by the Prime Minister, grants the final approval for the appointment.
• The Governor is the chief executive of India's central bank and serves as the ex-officio Chairperson of the Central Board of Directors.

Additional Information

• Historical Background of RBI:
• The Reserve Bank of India was established on April 1, 1935, based on the recommendations of the Hilton Young Commission (also known as the Royal Commission on Indian Currency and Finance).
• Initially, the bank was a shareholders' bank but was nationalized on January 1, 1949, under the Reserve Bank (Transfer to Public Ownership) Act, 1948, making it fully owned by the Government of India.
• Governors of Note:
• The first Governor of the RBI was Sir Osborne Smith, who served from 1935 to 1937.
• The first Indian Governor was Sir C.D. Deshmukh, who was appointed in 1943 and played a crucial role in the transition of the bank during India's independence.
• Shaktikanta Das is the 25th Governor of the Reserve Bank of India, assuming office in December 2018.
• Functions of the RBI:
• The RBI is the Monetary Authority that formulates and implements the Monetary Policy to maintain price stability while keeping the objective of growth in mind.
• It acts as the Issuer of Currency, the Banker to the Government, and the Banker to Banks. It also manages the Foreign Exchange Management Act, 1999 (FEMA) and oversees the Payment and Settlement Systems.

Important Points

• Tenure and Re-appointment: The Governor and Deputy Governors hold office for a term not exceeding five years, as fixed by the Central Government. Most appointments are initially for three years, with the possibility of an extension for another two years.
• The Central Board: The RBI is governed by a Central Board of Directors consisting of 21 members, including the Governor, four Deputy Governors, and other directors nominated by the Government of India.
• Section 7 of the RBI Act: This section allows the Central Government to give directions to the RBI in the public interest after consultation with the Governor. This power is rarely used but highlights the sovereign authority of the government over the central bank's policy direction.
• Monetary Policy Committee (MPC): The Governor leads the six-member MPC, which was established in 2016 to decide the Policy Repo Rate through a majority vote.

The correct answer is Sachchidananda Sinha.

Key Points

• The Constituent Assembly held its first meeting on 9 December 1946 in the Central Hall of Parliament House, New Delhi.
• Following the French practice of electing the oldest member to preside over the inaugural session, Dr. Sachchidananda Sinha was appointed as the temporary President of the Assembly.
• Dr. Sachchidananda Sinha (1871–1950) was an eminent lawyer, journalist, and parliamentarian from Bihar who played a significant role in the creation of the province of Bihar.
• It was Acharya J.B. Kripalani who introduced Dr. Sinha and requested him to take the chair as the interim chairman for the first meeting.
• His primary function was to oversee the initial oath-taking of members and the process of electing a permanent presiding officer for the Constituent Assembly.

Additional Information

• Dr. Rajendra Prasad:
• On 11 December 1946, two days after the first meeting, Dr. Rajendra Prasad was elected as the permanent President of the Constituent Assembly.
• He later became the first President of India upon the commencement of the Constitution in 1950.
• H.C. Mukherjee and V.T. Krishnamachari:
• The Constituent Assembly had two Vice-Presidents to assist the President in conducting the proceedings.
• Harendra Coomar Mookerjee, a prominent Christian leader and educationist, and V.T. Krishnamachari, a distinguished civil servant, held these positions.
• J.B. Kripalani:
• Acharya Jivataram Bhagwandas Kripalani was the President of the Indian National Congress during the crucial period of Indian Independence in 1947.
• He was the first person to address the Constituent Assembly when it met for the first time.
• Constitutional Advisor:
• Sir B.N. Rau was appointed as the Constitutional Advisor to the Assembly. He prepared the initial draft of the Constitution after studying various global democratic systems.

Important Points

• Timeline: The Constituent Assembly took a total of 2 years, 11 months, and 18 days to complete the framing of the Constitution of India.
• Objective Resolution: On 13 December 1946, Jawaharlal Nehru moved the historic Objective Resolution, which defined the aims and philosophy of the Constitution.
• Drafting Committee: On 29 August 1947, the Assembly set up a Drafting Committee under the chairmanship of Dr. B.R. Ambedkar, who is often called the 'Father of the Indian Constitution'.
• Adoption and Enforcement: The Constitution was adopted on 26 November 1949 (celebrated as Constitution Day) and came into force on 26 January 1950, turning India into a Republic.
• Membership: Originally, the Constituent Assembly consisted of 389 members, but after the partition of India and Pakistan, the number was reduced to 299.

The correct answer is Madhya Pradesh.

Key Points

• Satpura National Park is located in the Narmadapuram (formerly known as Hoshangabad) district of Madhya Pradesh, India.
• The park was established in the year 1981 and covers an extensive area of about 524 square kilometers.
• It forms a part of a larger protected ecosystem known as the Satpura Biosphere Reserve, which also includes the Bori Sanctuary and the Pachmarhi Sanctuary.
• The terrain of the park is remarkably diverse, featuring sandstone peaks, narrow gorges, ravines, and dense forests, with altitudes ranging from 300 to 1,352 meters.
• The highest peak of the Satpura Range and the state of Madhya Pradesh, known as Dhupgarh, is located within this national park at an elevation of 1,350 meters.

Additional Information

• Biodiversity and Wildlife:
• The park is a significant Tiger Reserve and is home to the Royal Bengal Tiger, Indian Leopard, and Sloth Bear.
• It is also famous for being a habitat for the Indian Giant Squirrel and the Flying Squirrel.
• Other notable fauna includes the Sambar, Chital, Nilgai, Four-horned antelope (Chousingha), Chinkara, and Wild Boar.
• Flora and Vegetation:
• The vegetation mainly consists of Southern Tropical Moist Deciduous Forest and Southern Tropical Dry Deciduous Forest.
• Key tree species found here include Teak (Tectona grandis), Sal (Shorea robusta), Tendu, Mahua, and various types of Bamboo.
• Hydrology and Geography:
• The Denwa River is the main water body flowing through the park, and the Tawa Reservoir is located on its western boundary.
• The reservoir provides a unique opportunity for boat safaris, allowing visitors to see crocodiles and various migratory birds.
• Unique Features:
• Satpura National Park is one of the few national parks in India where walking safaris are permitted, offering a more intimate experience with nature.
• The park also contains several rock shelters with prehistoric paintings, some of which are more than 10,000 years old, highlighting the area's ancient human history.

Important Points

• Conservation Status: In 1999, the area was designated as a Biosphere Reserve by the Government of India, and in 2009, it was recognized by UNESCO under the Man and the Biosphere (MAB) Programme.
• Tourism and Accessibility: The nearest major town is Pachmarhi, a popular hill station. The park can be accessed via Madhya Pradesh tourism gateways like Madhai.
• Recognition: The Satpura Tiger Reserve received the NatWest Group Earth Heroes Award in 2021 for its excellence in management and conservation efforts.

The correct answer is Italy.

Key Points

• Marco Polo (1254–1324) was a legendary Venetian merchant, explorer, and writer who originated from the Republic of Venice, which is located in modern-day Italy.
• He is renowned for his extensive travels through Asia along the Silk Road between the years 1271 and 1295, documenting his journey in the book "The Travels of Marco Polo".
• During his journey, he reached the court of the Mongol Emperor Kublai Khan in China (historically referred to as Cathay), where he served as a foreign emissary and governor for approximately 17 years.
• His accounts provided Europeans with the first comprehensive look into the geography, culture, and technological advancements of the Far East, including the use of paper money and coal.
• The travels of Marco Polo significantly influenced the Age of Discovery, inspiring later explorers like Christopher Columbus to seek new maritime routes to Asia.

Additional Information

• Portugal: This country was the pioneer of the maritime age, producing explorers like Vasco da Gama, who discovered the direct sea route to India in 1498, and Prince Henry the Navigator, who funded expeditions along the African coast.
• Morocco: This North African nation was the birthplace of Ibn Battuta (born 1304), one of the greatest travelers of all time, who covered nearly 75,000 miles across the Islamic world, Africa, and Asia.
• Spain: In the late 15th century, the Spanish monarchy (King Ferdinand and Queen Isabella) sponsored the historic 1492 voyage of Christopher Columbus, which led to the European discovery of the Americas.
• The Silk Road: This was an ancient network of trade routes that facilitated the exchange of goods, religions, and technologies between China, India, Persia, and the Mediterranean world for centuries.
• Republic of Venice: At the time of Marco Polo, Venice was a powerful maritime republic and a leading financial center, making it a hub for international commerce and exploration.

Important Points

• Marco Polo was not the first European to reach China, but he was the first to leave a detailed chronicle of his experiences, which was originally titled "Il Milione".
• He dictated his stories to a writer named Rustichello da Pisa while they were both prisoners of war in Genoa around 1298.
• The numerical value of his journey is staggering; he traveled for 24 years and covered thousands of miles through diverse territories such as Persia, Tartary, and Southeast Asia.
• His descriptions of Xanadu, the summer palace of Kublai Khan, became a symbol of opulence and grandeur in Western literature.

The correct answer is Shri Mangubhai Patel.

Key Points

• Shri Mangubhai Patel (Mangubhai Chhaganbhai Patel) is currently serving as the 19th Governor of Madhya Pradesh.
• He was officially appointed by the President of India on July 6, 2021, and took his oath of office on July 8, 2021. Hence, the option mentioning Shri Mangubhai Patel is correct.
• Before his tenure as Governor, he had a distinguished political career in Gujarat, serving as a six-time MLA representing the Navsari constituency and as a Cabinet Minister in the Gujarat Government.
• He has notably served as the Deputy Speaker of the Gujarat Legislative Assembly and held portfolios such as Forest and Environment and Tribal Development.
• His appointment followed the vacancy created when Anandiben Patel held the additional charge of Madhya Pradesh alongside her primary role as the Governor of Uttar Pradesh.

Additional Information

• Constitutional Provisions:
• Article 153 of the Constitution of India mandates that there shall be a Governor for each state.
• Article 155 specifies that the Governor of a state shall be appointed by the President by warrant under his hand and seal.
• Article 156 states that the Governor holds office during the pleasure of the President, generally for a term of 5 years.
• Qualifications: To be eligible for the post, a person must be a citizen of India and must have completed the age of 35 years. They should not hold any office of profit or be a member of either Parliament or a State Legislature.
• Role and Functions: The Governor acts as the Constitutional Head of the state, representing the Union Government and ensuring that the state administration is carried out in accordance with the Constitution.
• Executive Powers: All executive actions of the State Government are formally taken in the name of the Governor. He appoints the Chief Minister and other ministers on the advice of the Chief Minister under Article 164.

Important Points

• First Governor: The first Governor of Madhya Pradesh was Dr. B. Pattabhi Sitaramayya, who served from 1952 to 1957.
• Judicial Power: Under Article 161, the Governor has the power to grant pardons, reprieves, respites, or remissions of punishment to any person convicted of any offence against any law relating to a matter to which the executive power of the State extends.
• Legislative Role: The Governor summons and prorogues the State Legislature and can dissolve the Legislative Assembly. He addresses the first session of the State Legislature after each General Election and at the commencement of the first session of each year.
• Discretionary Powers: In certain situations, such as the selection of a Chief Minister when no party has a clear majority or the dismissal of the Council of Ministers if they lose the confidence of the house, the Governor can exercise discretionary powers.

The correct answer is Iranian.

Key Points

• The Gohad Fort is located in the Bhind district of Madhya Pradesh, India. It is a historical monument that reflects the architectural prowess of the Jat rulers.
• The Kachhari Mahal (Court Palace) situated inside the Gohad Fort is particularly famous for its Iranian art. The intricate carvings, pillars, and structural designs are a unique fusion that highlights Persian/Iranian influence in central India. Hence, the statement regarding Iranian art in Kachhari Mahal is correct.
• The fort was built in the 16th century, specifically around the year 1505, by the Jat ruler Rana Singhandev II. It served as a strategic stronghold for the Gohad State for centuries.
• The architecture of the fort is notable for its circular shape and defensive mechanism. It features 11 gates, each named after specific local or historical contexts, and is surrounded by a deep moat.
• The Kachhari Mahal displays distinctive features like carved stone brackets and arches that deviate from the standard Mughal or Rajput styles, leaning more towards the Iranian aesthetic traditions of the medieval period.

Additional Information

• Geographical Location: The fort is situated on the banks of the Vaisali river. The location provided natural defense and a sustainable water source for the inhabitants of the fort and the town of Gohad.
• UNESCO Recognition: In the year 2017, the Gohad Fort was awarded the UNESCO Asia-Pacific Heritage Award for Cultural Heritage Conservation. This was in recognition of the restoration work that preserved its unique Jat and Iranian architectural elements.
• The Rana Rulers: The fort remained the capital of the Rana Jats until they captured Gwalior Fort. Significant rulers like Maharaja Bhim Singh Rana and Maharaja Chhatar Singh are closely associated with the history and expansion of this site.
• Other Structures: Apart from the Kachhari Mahal, the fort premises include the Rani Mahal, Hawa Mahal, and various administrative buildings that showcase a blend of local stone craftsmanship and imported artistic styles.

Important Points

• Artistic Features: The Iranian art mentioned in the context of Kachhari Mahal refers to the floral patterns, geometric symmetry, and specific archway designs that were characteristic of Safavid or Persian art, which traveled to India through trade and cultural exchanges.
• District Facts: Bhind district, where the fort is located, is part of the Chambal Division of Madhya Pradesh. It is historically known as a land of warriors and is famous for its temples and ancient forts.
• Construction Material: The fort was primarily constructed using local sandstone and lime mortar, which has allowed the Iranian carvings to remain visible and relatively well-preserved despite the passage of over 500 years.
• Administrative Use: During the reign of the Jats, the Kachhari Mahal functioned as the highest seat of justice and the main administrative court, where the Rana would meet his subjects and officials.

The correct answer is Akbar.

Key Points

• The Tomb of Rani Roopmati and Baz Bahadur is a significant historical monument located in Sarangpur, which falls under the Rajgarh district of Madhya Pradesh, India.
• It was commissioned by the Mughal Emperor Akbar in the year 1565 A.D. as a tribute to the tragic love story and the final resting place of the last independent ruler of Malwa and his consort. Hence, the option Akbar is correct.
• Baz Bahadur was the Sultan of Malwa who reigned from 1555 to 1562. He was famously known for his deep interest in music and arts rather than military conquests.
• Rani Roopmati was a legendary Hindu singer and poetess of Malwa. Her beauty and voice captivated the Sultan, leading to a celebrated romance that ended in tragedy following the Mughal invasion.
• The monument is built in the Indo-Islamic architectural style, characterized by its sturdy stone construction and elegant domes. It is situated amidst a water body known as the Pari Talab, reflecting the aesthetic sensibilities of the 16th century.

Additional Information

• Historical Context: In 1561, Emperor Akbar sent his generals Adham Khan and Pir Mohammad Khan to conquer Malwa. The Battle of Sarangpur took place, resulting in the defeat of Baz Bahadur. Rani Roopmati chose to consume poison to avoid capture by the Mughal forces, symbolizing her loyalty and devotion.
• Emperor Jahangir (Option A): He was the fourth Mughal Emperor who ruled from 1605 to 1627. While he was a patron of Mughal paintings and architecture (like Shalimar Bagh), he was not the one who built the Sarangpur tombs in 1565 as he was born later in 1569. Hence, this statement is incorrect.
• Emperor Shah Jahan (Option B): The fifth Mughal Emperor (reigned 1628–1658), renowned for the Taj Mahal and the Golden Age of Mughal architecture. His architectural style was much more ornate and used white marble extensively, unlike the 1565 structure in Sarangpur. Hence, this statement is incorrect.
• Emperor Humayun (Option D): The second Mughal Emperor and father of Akbar. He ruled in two phases (1530–1540 and 1555–1556). He passed away in 1556, nearly a decade before the tomb in Sarangpur was constructed. Hence, this statement is incorrect.
• Location - Sarangpur: It is a Tehsil in the Rajgarh district of Madhya Pradesh. Historically, it was a strategic point on the route between North India and the Deccan, making it a frequent site for military engagements during the Sultanate and Mughal eras.

Important Points

• Architectural Features: The tomb stands on a high square platform. It features octagonal shapes in its internal layout and is topped by a large central dome surrounded by smaller kiosks (chhatris). The use of local sandstone is prominent, which is a hallmark of the Malwa Sultanate architecture influence adopted by early Mughal builders.
• Cultural Impact: The story of Roopmati and Baz Bahadur is still alive in the folk songs and ballads of the Malwa region. Their love transcends religious boundaries and remains a symbol of musical harmony and cultural synthesis in India.
• Mandu Connection: While the tombs are in Sarangpur, the couple is most closely associated with Mandu (the City of Joy), where monuments like Roopmati's Pavilion and Baz Bahadur's Palace are popular tourist attractions today.

The correct answer is Telangana.

Key Points

• Bonalu is a traditional Hindu festival celebrated annually in the state of Telangana, India.
• The festival is dedicated to Goddess Mahakali and is observed as a thanksgiving to the Goddess for fulfillment of vows.
• It is celebrated during the Ashada Masam, which typically falls in July or August of the Gregorian calendar.
• The word Bonalu is derived from the Telugu word Bhojanam, which signifies a meal or a feast offered to the Mother Goddess.
• In 2014, after the formation of the state, the Government of Telangana declared Bonalu as the State Festival.
• The celebrations take place in various parts of the Twin Cities (Hyderabad and Secunderabad) on different Sundays during the month.

Additional Information

• Gujarat: This state is world-famous for Navratri, a nine-night festival dedicated to Goddess Durga. It features the traditional folk dances Garba and Dandiya Raas. Another major festival is Uttarayan (International Kite Festival) held in January.
• Maharashtra: The most prominent festival is Ganesh Chaturthi, which was popularized as a public event by Lokmanya Tilak in 1893 to unite people against colonial rule. Other festivals include Gudi Padwa (Marathi New Year) and Pola.
• Assam: The cultural identity of Assam is centered around the Bihu festivals. There are three types: Rongali Bihu (April), Kongali Bihu (October), and Bhogali Bihu (January). The Ambubachi Mela at Kamakhya Temple is another significant event.
• Components of Bonam: The offering, or Bonam, consists of cooked rice, jaggery, curd, and water. It is carried in earthen or brass pots decorated with neem leaves, turmeric, and vermillion (Kunkum).

Important Points

• Historical Context: The origin of the festival is linked to a plague outbreak in 1813 in the twin cities. It is believed that the military battalion from Hyderabad stationed in Ujjain prayed to Mother Goddess to stop the plague and promised to install her idol. The festival has been celebrated ever since.
• Potharaju: He is considered the brother of the Goddess. A man playing this role is usually well-built, wears a small dhoti, and is smeared with turmeric. He dances to the resonance of drums (Thasha) and leads the female devotees carrying Bonalu.
• Rangam: This is a significant ritual performed on the morning after the main festival. A woman stands on an earthen pot and performs the Oracle, where she is believed to be possessed by the Goddess and foretells the future of the community and the rainfall for the year.
• Ghatam: A copper pot decorated in the form of the Goddess is carried by a priest. This Ghatam is taken in a procession accompanied by music, marking the conclusion of the festival before being immersed (nimajjanam) in water.
• Thottela: These are small colorful paper structures supported by bamboo sticks, offered to the Goddess as a mark of respect and decoration.

The correct answer is 7th Century.

Key Points

• The Shore Temple is a complex of temples located in Mahabalipuram (also known as Mamallapuram) in the state of Tamil Nadu, India.
• It was constructed during the reign of the Pallava Dynasty, specifically commissioned by King Narasimhavarman II (also known as Rajasimha), who ruled from approximately 700 to 728 AD.
• While the broader architectural development of Mahabalipuram began in the 7th Century under King Narasimhavarman I (630–668 AD), the Shore Temple represents the culmination of this artistic era, spanning the late 7th Century and early 8th Century.
• The temple is built on the Coromandel Coast overlooking the Bay of Bengal, and it is named the "Shore Temple" because it sits directly on the shoreline.
• Unlike the earlier rock-cut cave temples or monolithic rathas of the region, the Shore Temple is a structural temple built using finely cut granite blocks.

Additional Information

• Architectural Style: The temple is a prime example of early Dravidian architecture. It features tall, pyramidal towers called Vimanas and intricately carved sculptures of Nandi (the bull) surrounding the enclosure.
• Deities: The complex includes three shrines. Two of these are dedicated to Lord Shiva (one facing east and one facing west), while a smaller, third shrine nestled between them is dedicated to Lord Vishnu (depicted as Anantashayana Vishnu or the reclining form).
• UNESCO World Heritage Site: In 1984, the Shore Temple, along with other monuments at Mahabalipuram, was classified as a UNESCO World Heritage Site for its cultural and historical significance.
• The Legend of Seven Pagodas: For centuries, European sailors referred to Mahabalipuram as the "Seven Pagodas," believing that the Shore Temple was the only survivor of seven such structures, the rest having been submerged by the sea.
• 2004 Tsunami Impact: During the Indian Ocean Tsunami in 2004, the receding waters briefly revealed several submerged structures and carvings near the Shore Temple, lending archaeological weight to the "Seven Pagodas" legend.

Important Points

• Transition in Construction: The Shore Temple marks a pivotal shift in Indian temple history from cave architecture (excavated into hills) to structural masonry (built from the ground up using stone blocks).
• Pallava Dynasty Patronage: The Pallavas were instrumental in spreading South Indian art and culture. Their architectural style influenced temple designs as far away as Java, Cambodia, and Vietnam.
• Durability: Despite being subjected to the corrosive effects of salty sea spray and monsoonal winds for over 1,300 years, the temple remains largely intact due to the use of high-quality granite.
• Mamallapuram History: The city was a thriving seaport during the 7th Century, serving as a hub for trade between the Pallava Empire and South East Asian kingdoms.

The correct answer is 1952.

Key Points

• The first general elections to the Lok Sabha were held in India between October 25, 1951, and February 21, 1952. Although the process started in 1951, the vast majority of the voting took place in the early months of 1952, leading to it being officially recorded as the 1952 elections.
• The Indian National Congress (INC) won a resounding victory in this first democratic exercise, securing 364 out of the 489 seats contested. Jawaharlal Nehru became the first democratically elected Prime Minister of independent India.
• The Election Commission of India, led by the first Chief Election Commissioner, Sukumar Sen, managed the Herculean task of organizing the polls for a massive electorate of approximately 17.3 crore people.
• This election was a significant milestone as it implemented the principle of Universal Adult Franchise, allowing every citizen of a certain age (at that time 21 years) the right to vote, regardless of their gender, caste, or religion.
• The first Lok Sabha was finally constituted on April 17, 1952, following the conclusion of the polling process across the country.

Additional Information

• Election Commission of India: It was established on January 25, 1950, just a day before India became a Republic. It functions under Article 324 of the Constitution of India and is responsible for conducting free and fair elections to the Parliament and State Legislatures.
• Voter Demographics: During the 1952 elections, nearly 85% of the Indian population was illiterate. To facilitate voting, the Election Commission introduced the system of party symbols and separate ballot boxes for each candidate, painted with their respective symbols.
• First Voter: Shyam Saran Negi, from the Kalpa region of Himachal Pradesh, is recognized as the first person to cast a vote in independent India. Voting in high-altitude areas was conducted in October 1951, before the winter snow blocked the passes.
• Constitutional Framework: The Representation of the People Act, 1950, and the Representation of the People Act, 1951, were passed by the provisional parliament to provide the necessary legal framework and rules for the conduct of these elections.
• Political Participation: A total of 53 political parties participated in the first general elections, including the Communist Party of India (CPI), the Socialist Party, and the Bharatiya Jana Sangh.

Important Points

• Speaker of the Lok Sabha: Ganesh Vasudev Mavalankar, popularly known as G.V. Mavalankar, was elected as the first Speaker of the Lok Sabha in 1952.
• Rajya Sabha Formation: Parallel to the Lok Sabha, the first Rajya Sabha (Council of States) was also constituted in 1952, and its first session was held on May 13, 1952.
• Voting Age Evolution: While the voting age was originally 21 years during the 1952 elections, it was later reduced to 18 years by the 61st Constitutional Amendment Act, 1988, which came into effect in 1989.
• First Presidential Election: Following the formation of the new Parliament, the first Presidential election was held in May 1952, where Dr. Rajendra Prasad was formally elected as the President of India.
• Parliamentary Sessions: The first session of the first Lok Sabha began on May 13, 1952, marking the start of the legislative history of Republic India.

The correct answer is Indus.

Key Points

• The Jhelum River is a major river that flows through India and Pakistan. It is one of the five major tributaries of the Indus river system, which gives the Punjab region its name. Hence, the option Indus is correct.
• The river originates from the Verinag Spring, situated at the base of the Pir Panjal range in the south-eastern part of the valley of Kashmir.
• It flows through Srinagar and the Wular Lake before entering Pakistan through a deep, narrow gorge. It joins the Chenab River at Trimmu in the Jhang District of Pakistan, which eventually merges with the Indus.
• The total length of the Jhelum river is about 725 kilometers (approximately 450 miles).
• In ancient times, the Jhelum was known as the Hydaspes by the Greeks and as Vitasta in Sanskrit. It was the site of the famous Battle of the Hydaspes between Alexander the Great and King Porus in 326 BC.

Additional Information

• Indus River System:
• The Indus is one of the longest rivers in the world, with a length of about 3,180 km. It originates in the Tibetan Plateau near Lake Mansarovar.
• Its main tributaries in India are the Jhelum, Chenab, Ravi, Beas, and Sutlej. These five rivers eventually join the Indus at Mithankot in Pakistan.
• Ganga River:
• The Ganga is the longest river in India, stretching 2,525 km. It originates as the Bhagirathi from the Gangotri Glacier in Uttarakhand.
• Major tributaries include the Yamuna, Son, Gandak, Kosi, and Ghaghara. It drains into the Bay of Bengal.
• Yamuna River:
• The Yamuna is the longest and the second-largest tributary of the Ganga in northern India.
• It originates from the Yamunotri Glacier in the Lower Himalayas at an elevation of about 6,387 meters.
• It passes through Delhi, Haryana, and Uttar Pradesh before merging with the Ganga at Prayagraj (Triveni Sangam).
• Narmada River:
• The Narmada is one of the major west-flowing rivers of India, originating from the Amarkantak plateau in Madhya Pradesh.
• It flows through a rift valley between the Vindhya and Satpura ranges and drains into the Arabian Sea through the Gulf of Khambhat.

Important Points

• Indus Water Treaty (1960): This is a water-sharing treaty between India and Pakistan, brokered by the World Bank. According to this treaty, the waters of the three "western rivers"—Indus, Jhelum, and Chenab—are allocated to Pakistan for unrestricted use, while India has rights over the three "eastern rivers"—Ravi, Beas, and Sutlej.
• Hydropower Projects: Several important hydroelectric projects are located on the Jhelum, such as the Uri Dam and the Kishanganga Hydroelectric Plant in the union territory of Jammu and Kashmir.
• Kishanganga River: Also known as the Neelum River in Pakistan, it is the largest tributary of the Jhelum, joining it at Muzaffarabad.
• The Indus river is critical for the economy of Pakistan, providing the primary water source for agriculture and industry in the Sindh and Punjab provinces.

The correct answer is 2016.

Key Points

• Pradhan Mantri Fasal Bima Yojana (PMFBY) was officially launched by Prime Minister Narendra Modi on 18th February 2016. The launch took place in Sehore, Madhya Pradesh, following the announcement in the Union Budget of 2016.
• The scheme was introduced as a flagship crop insurance program to provide financial support to farmers suffering from crop loss or damage arising out of unforeseen events such as natural calamities, pests, and diseases.
• One of the most defining features of PMFBY is the low premium rate for farmers. It fixed a uniform premium of only 2% to be paid by farmers for all Kharif crops and 1.5% for all Rabi crops.
• For annual commercial and horticultural crops, the premium to be paid by farmers is capped at 5%. The balance premium is paid by the Government to provide the full sum insured to the farmers.
• The scheme successfully replaced the National Agricultural Insurance Scheme (NAIS) and the Modified National Agricultural Insurance Scheme (MNAIS), aiming to remove their inherent shortcomings and provide a "One Nation, One Scheme" approach.

Additional Information

• Ministry Involvement: The Ministry of Agriculture & Farmers Welfare is the nodal ministry responsible for the administrative functions and policy guidelines of PMFBY across India.
• Revamped PMFBY 2.0: In February 2020, the Central Government revamped the scheme to make it voluntary for all farmers. Prior to this, it was mandatory for loanee farmers who had taken institutional loans (like KCC).
• Technological Integration: The scheme promotes the use of innovative technology such as Remote Sensing, Drones (UAVs), and Smartphones to reduce the delay in claim settlements and improve the accuracy of yield estimation.
• Claim Settlement: The claims are settled based on Yield Data through Crop Cutting Experiments (CCE). The National Crop Insurance Portal (NCIP) was developed to ensure transparency and better coordination between banks, insurance companies, and state governments.
• Subsidy Sharing: The premium subsidy is shared between the Central Government and State Governments on a 50:50 basis, except in the North-Eastern States where the sharing ratio is 90:10 to provide better financial support.

Important Points

• Comprehensive Risk Coverage: The scheme covers yield losses due to non-preventable risks, such as drought, flood, dry spells, and landslides. It also includes post-harvest losses for up to 14 days from harvesting due to cyclones or unseasonal rains.
• Eligibility Criteria: All farmers, including tenant farmers and sharecroppers growing the notified crops in the notified areas, are eligible for coverage under this scheme.
• Exclusions: Losses arising out of war and nuclear risks, malicious damage, and other preventable risks are generally excluded from the insurance coverage.
• Aadhar Integration: To prevent duplication and ensure direct benefit transfer, Aadhar seeding of farmer accounts is a critical requirement for claim payments.

The correct answer is 63.

Key Points

• India was ranked 63rd among 190 countries in the last released World Bank's Ease of Doing Business Report (specifically the Doing Business 2020 report). Hence, the statement regarding the rank is correct.
• The World Bank decided to discontinue the "Doing Business" report in September 2021 following internal audits that revealed data irregularities in the 2018 and 2020 reports.
• India moved up 14 places from its 77th position in 2019, showing a significant improvement in its regulatory environment for businesses.
• India was recognized as one of the top 10 improvers globally for the third consecutive year due to extensive reforms in starting a business and resolving insolvency.
• The Doing Business report serves as a benchmark for measuring the costs, time, and complexity of bureaucratic procedures that an entrepreneur must navigate to open and operate a business.

Additional Information

• Parameters of Ranking: The index is calculated based on 10 parameters, which include Starting a Business, Dealing with Construction Permits, Getting Electricity, Registering Property, Getting Credit, Protecting Minority Investors, Paying Taxes, Trading Across Borders, Enforcing Contracts, and Resolving Insolvency.
• Replacement Index: Following the discontinuation of the Ease of Doing Business report, the World Bank introduced a new flagship project called Business Ready (B-READY) to assess the business and investment climate worldwide.
• Nodal Agency in India: The Department for Promotion of Industry and Internal Trade (DPIIT), under the Ministry of Commerce and Industry, is the nodal department for monitoring India's performance in these global rankings and implementing reforms.
• State Rankings: In addition to global ranks, India conducts its own Business Reform Action Plan (BRAP) ranking for States and Union Territories to encourage a competitive environment at the sub-national level.
• Impact of Reforms: Significant improvements were noted in the Resolving Insolvency category, where the Insolvency and Bankruptcy Code (IBC), 2016 played a pivotal role in reducing the time taken for the recovery of dues.

Important Points

• Historical Context: India's rank was 142nd in 2014, meaning the country jumped 79 positions between 2014 and 2019, reflecting the "Make in India" initiative's focus on deregulation.
• Top Performers: In the final 2020 report, New Zealand held the 1st rank, followed by Singapore and Hong Kong (China).
• Data Discontinuation: It is important to note that since the report was officially scrapped in 2021, there is no official "Doing Business 2022" ranking; however, competitive exams frequently refer to the 63rd rank from the 2020 publication as the most recent data point.
• Constitutional Framework: Economic planning and business regulations in India are governed by both Union List and Concurrent List entries in the Seventh Schedule of the Constitution of India.

The correct answer is Kamaljeet Sandhu.

Key Points

• Kamaljeet Sandhu is a former Indian female athlete who represented the country in track and field events, specifically the 400-meter race.
• She etched her name in the history of Indian sports by becoming the first Indian woman to win a gold medal at the Asian Games in the year 1970.
• This historic feat was achieved during the 6th Asian Games held in Bangkok, Thailand. She completed the 400m race in a record time of 57.3 seconds.
• Hailing from the state of Punjab, her victory was a landmark moment that broke gender barriers in Indian athletics. For her immense contribution and achievement, she was honored with the Padma Shri award in 1971.
• She was also one of the few Indian women athletes to compete in the 1972 Munich Olympics, participating in the women's 400 meters.

Additional Information

• P.T. Usha (Pilavullakandi Thekkeparambil Usha):
• Known as the "Payyoli Express" and the "Queen of Indian Track and Field," she is one of India's most celebrated athletes.
• While she is often associated with Asian Games dominance, her major haul came later in the 1986 Seoul Asian Games, where she won four gold medals and one silver medal.
• She famously missed an Olympic bronze medal by a mere 1/100th of a second in the 400m hurdles at the 1984 Los Angeles Olympics.
• Anju Bobby George:
• She is a legendary Indian long jumper who made history by winning the gold medal at the 2002 Busan Asian Games.
• In 2003, she became the first Indian athlete ever to win a medal in the World Championships in Athletics, securing a Bronze in Paris with a jump of 6.70 meters.
• She was awarded the Arjuna Award in 2002 and the Major Dhyan Chand Khel Ratna in 2003.
• Hima Das:
• Nicknamed the "Dhing Express," she is a contemporary sprinter from the state of Assam.
• She won a silver medal in the individual 400m and a gold medal in the 4x400m mixed relay at the 2018 Jakarta Asian Games.
• She holds the current Indian national record in 400 meters with a timing of 50.79 seconds.

Important Points

• The Asian Games, also known as the Asiad, is a multi-sport event held every four years among athletes from all over Asia, regulated by the Olympic Council of Asia (OCA).
• The very first edition of the Asian Games was hosted by India in 1951 at New Delhi.
• India's performance in the 1970 Bangkok Games was significant as it finished 5th in the overall medal tally, and Kamaljeet Sandhu's gold was the only individual gold won by an Indian woman in that edition.
• The success of athletes like Sandhu paved the way for the National Sports Policy and increased funding for women in sports in India during the subsequent decades.

The correct answer is 1955.

Key Points

• The first Law Commission of independent India was established in the year 1955.
• It was constituted for a three-year term with the primary objective of reviewing and reforming the laws of the country to ensure they aligned with the Constitution of India.
• The Chairman of the first Law Commission was Mr. M.C. Setalvad, who was also the first Attorney General of India.
• This commission submitted its report in 1958, covering various aspects of the legal system, including judicial administration and the reform of colonial-era laws.
• Since 1955, it has become a tradition to reconstitute the Law Commission every three years to address the evolving legal needs of the Indian society.

Additional Information

• Pre-Independence Law Commissions:
• The history of Law Commissions in India dates back to the British era. The first-ever Law Commission was established in 1834 under the Charter Act of 1833.
• This commission was presided over by Lord Macaulay and is famous for drafting the Indian Penal Code (IPC), which was eventually enacted in 1860.
• Other pre-independence commissions were established in 1853, 1861, and 1879, which contributed to the Code of Civil Procedure and the Indian Contract Act.
• Structure and Composition:
• The Law Commission typically consists of a Chairman (usually a retired Supreme Court Judge or a retired Chief Justice of a High Court), a member-secretary, and several full-time and part-time members.
• The Secretary of the Department of Legal Affairs and the Secretary of the Legislative Department serve as ex-officio members of the commission.
• Recent Commissions:
• The 22nd Law Commission of India was constituted in 2020, and its term was extended until August 31, 2024. It was headed by Justice (retd) Rituraj Awasthi.
• The 23rd Law Commission has been approved by the Union Cabinet in 2024 to continue the work of legal research and reform.

Important Points

• Legal Status: The Law Commission of India is a non-statutory body. It is not created by an Act of Parliament or mentioned in the Constitution; rather, it is established by an executive order of the Government of India.
• Function: It functions as an advisory body to the Ministry of Law and Justice. Its recommendations are not binding on the government, but they carry significant weight in the legislative process.
• Major Contributions: Over the decades, the Law Commissions have submitted over 280 reports, recommending the repeal of obsolete laws, the introduction of new legislations like the Right to Information (RTI) concepts, and reforms in Family Law, Criminal Justice, and Commercial Laws.
• Location: The headquarters of the Law Commission of India is located in New Delhi.

The correct answer is Mumbai.

Key Points

• The first Migration Monitoring System in India was inaugurated in Mumbai in October 2022. This pioneering initiative was launched by the Maharashtra Minister of Women and Child Development, Mangal Prabhat Lodha.
• The system is designed as a web-based application to track the movement of migrant pregnant women, lactating mothers, and children (aged 0 to 18 years).
• Its primary function is to provide real-time information on migrant beneficiaries, ensuring that they continue to receive government benefits such as nutrition, vaccination, and health check-ups regardless of their location.
• By using this system, the Department of Women and Child Development can monitor the seasonal migration of families, particularly those moving for work in sectors like sugarcane cutting or brick kilns.
• The Migration Monitoring System facilitates the portability of Integrated Child Development Services (ICDS), which helps in reducing the malnutrition rates and infant mortality among the vulnerable migrant population.

Additional Information

• Migration Tracking System (MTS):
• The MTS is a specialized application developed by the Government of Maharashtra to digitize the records of migrant workers.
• In the year 2022, Maharashtra became the first state in India to develop such a comprehensive tracking mechanism for the unorganized sector.
• The system assigns a unique ID to every migrant beneficiary, allowing Anganwadi workers to update their status as they move from one district to another.
• Integrated Child Development Services (ICDS):
• ICDS is a centrally sponsored scheme launched in 1975. It aims to improve the nutritional and health status of children in the age group 0-6 years.
• The Migration Monitoring System specifically addresses the gap where migrants used to lose access to supplementary nutrition provided at Anganwadi centers when they left their home village.
• Impact on Public Health:
• The system helps the health department maintain the immunization schedule for migrant children, preventing outbreaks of diseases like polio or measles.
• It also tracks high-risk pregnant women among the migrants to ensure they receive institutional delivery and antenatal care.

Important Points

• Data Management: The Migration Monitoring System has successfully mapped thousands of beneficiaries across Maharashtra, specifically in high-migration districts like Nandurbar, Gadchiroli, and Nashik.
• Digital India Initiative: This project aligns with the Government of India’s Digital India vision by replacing manual registers with digital databases for better governance and transparency.
• National Importance: Following the COVID-19 pandemic, the need for a robust migration tracking mechanism became evident to protect the livelihoods and health of internal migrants in India.
• Implementation Agency: The system was developed with the assistance of the National Informatics Centre (NIC) to ensure data security and seamless integration with existing centralized portals.

The correct answer is Ngozi Okonjo-Iweala.

Key Points

• Ngozi Okonjo-Iweala took office as the Director-General of the World Trade Organization (WTO) on 1 March 2021, following a decision by the organization's General Council.
• She made history by becoming the first woman and the first African to lead the WTO since its inception in 1995.
• She is a highly respected Nigerian-American economist and international development expert with over 30 years of experience in global finance and governance.
• Before joining the WTO, she served two terms as the Finance Minister of Nigeria (2003–2006 and 2011–2015) and briefly as the Foreign Minister in 2006.
• Her appointment was significant for the multilateral trading system, as she brought a focus on trade's role in addressing global health (including COVID-19 vaccines) and sustainable development.

Additional Information

• World Trade Organization (WTO):
• The WTO was established on 1 January 1995, following the Marrakesh Agreement of 1994, replacing the General Agreement on Tariffs and Trade (GATT) which had been in place since 1948.
• It is headquartered in Geneva, Switzerland, and is the only global international organization dealing with the rules of trade between nations.
• As of 2024, the organization has 166 member states, which represent more than 98% of total world trade.
• Kamala Harris (Option A):
• She is the 49th Vice President of the United States, inaugurated on 20 January 2021.
• She is the first woman, the first African American, and the first South Asian American to hold this office.
• Rosa Parks (Option C):
• She was a prominent American activist in the civil rights movement, best known for her refusal to give up her seat on a public bus in Montgomery, Alabama, in 1955.
• Her act of defiance sparked the Montgomery bus boycott, a seminal event in the struggle for racial equality in the USA.
• Sojourner Truth (Option B):
• Born into slavery in 1797, she was an American abolitionist and women's rights activist.
• She is famous for her 1851 speech delivered at the Women's Rights Convention in Akron, Ohio, later known as "Ain't I a Woman?"

Important Points

• Professional Background: Dr. Okonjo-Iweala had a 25-year career at the World Bank as an operational economist, eventually rising to the No. 2 position of Managing Director.
• Academic Excellence: she graduated magna cum laude with an A.B. in Economics from Harvard University in 1976 and earned a Ph.D. in Regional Economics and Development from the Massachusetts Institute of Technology (MIT) in 1981.
• Global Leadership: She has served as the Chair of the Board of Gavi, the Vaccine Alliance (2016–2020), and was a member of the African Union's (AU) Special Envoys to mobilize international financial support for the fight against COVID-19.
• WTO Reappointment: In late 2024, the General Council of the WTO moved toward reappointing her for a second term as Director-General, which is set to begin in September 2025.

The correct answer is: Influence.

Key Points

• The word "Dominance" refers to control, authority, or power over others. It indicates a state where someone or something exerts influence or has superiority over others. (प्रभुत्व)
• Example: The dominance of technology in our lives has transformed the way we communicate.
• "Influence" refers to the capacity to affect or change someone's behavior or decisions indirectly, without force or direct authority. (प्रभाव)
• Example: His speech had a great influence on the audience, inspiring them to take action.
• Hence, the synonym for 'Dominance' is 'Influence'.

Therefore, the correct answer is: Influence.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Aggression (आक्रामकता): Hostile or violent behavior or attitudes toward others.
• Example: His aggression on the field made him a fierce competitor.
• Estimation (अनुमान): An approximate calculation or judgment about something.
• Example: The estimation of the project's cost was significantly higher than expected.
• Comparison (तुलना): The act of examining similarities and differences between two or more things.
• Example: The comparison between the two products showed clear advantages for the new one.

The correct answer is '1'.

 

Key Points

• The phrase "herself on a crossroads" is incorrect because the subject "India’s entertainment sector" is non-living and neutral, so the reflexive pronoun "herself" is inappropriate.
• The correct reflexive pronoun for "India’s entertainment sector" is "itself."
• The phrase "at a crossroad" is grammatically correct and matches the intended meaning of the sentence.

Therefore, the correct answer is Option 1.

 

Complete Sentence: "India’s entertainment sector today finds itself at a crossroad just like the US gaming industry did in the mid-90s."

 

Additional Information

• Option 2: "himself at a crossroads" is incorrect because the subject "India’s entertainment sector" is neutral and not masculine.
• Option 3: "themselves at a crossroad" is incorrect because the subject is singular, not plural.
• Option 4: No substitution required is incorrect because the original phrase contains grammatical errors.

The correct answer is '3'.

 

Key Points

• The phrase "fosters responsibility" correctly conveys the idea of encouraging responsibility in the context of self-regulation.
• The given sentence is grammatically and contextually correct, and no substitution is required.
• Options 1, 2, and 4 do not fit the context effectively:
• Option 1: "instill confidence" is unrelated to the idea of fostering responsibility in this sentence.
• Option 2: "installing ethics" is not appropriate as it doesn't align with the meaning of the original sentence.
• Option 4: "inculcate values" is relevant but doesn't match the intended meaning as precisely as the original phrase.

Therefore, the correct answer is Option 3.

 

Complete Sentence: "Self-regulation is useful because it fosters responsibility without diktats that hamper growth of new industries."

 

Additional Information

• Option 1: "instill confidence" typically refers to encouraging belief or assurance, which is not the focus here.
• Option 2: "installing ethics" is an incorrect phrase as "installing" is not used in this context.
• Option 4: "inculcate values" refers to teaching or instilling values, but the original sentence emphasizes responsibility, making the original phrase more suitable.

The correct answer is: Option 1 i.e. strongly.

Key Points

• The word "strongly" means with great force or intensity; firmly or resolutely. (मज़बूती से)
• Example: She strongly believes in the importance of education for every child.
• The correct word "strongly" fits the blank space as it reflects the intensity of belief the parents have regarding their children's choices. (मज़बूती से)
• Example: They strongly believe their children should make choices for themselves.

Therefore, the correct answer is: Option 1 i.e. strongly.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Previous (पिछला): Existing or happening before in time or order.
• Example: Her previous job was in a different city.
• Some (कुछ): Refers to an unspecified amount or number.
• Example: Some people prefer tea over coffee.
• Forward (आगे): In the direction that one is facing or moving; onward.
• Example: He took a step forward to address the audience.

The correct answer is: Option 4 i.e. Carefully.

Key Points

• The word "perfunctorily" means to perform an action in a routine, careless, or indifferent manner without much thought or care. (उदासीनता से)
• Example: He waved perfunctorily at his neighbors while walking past them.
• "Carefully" refers to the act of performing something with attention, caution, and effort, ensuring that no mistakes are made. (सावधानी से)
• Example: The artist carefully painted the intricate details of the portrait.
• Hence, the opposite of "perfunctorily" is "carefully."

Therefore, the correct answer is: Carefully.

---

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Nicely (अच्छे से): Refers to doing something in a pleasant or agreeable manner.
• Example: He nicely arranged the flowers in the vase.
• Cautiously (सावधानीपूर्वक): Refers to being careful to avoid potential risks or dangers.
• Example: She cautiously crossed the busy street.
• Quickly (जल्दी): Refers to performing an action in a fast or swift manner.
• Example: He quickly finished his homework to go out and play.

The correct answer is Option 4.

 

Key Points

• The given sentence is in the Passive Voice. We need to convert it into the Active Voice.
• The sentence is in the Simple Past Tense (Subject + was/were + V3).
• To convert to active voice: The agent "his father" becomes the subject.
• The verb phrase "was sent" (passive) changes to the simple past form "sent" (active).
• The subject "Paul" becomes the object "him."
• The structure for Simple Past Active Voice is: Subject + V2 + Object.

Therefore, the correct answer is Option 4.

 

Correct Sentence: "Paul's father sent him on an errand."

 

Additional Information

• Option 1: "Paul's father has sent him on an errand." – Incorrect tense (Present Perfect).
• Option 2: "Paul's father had sent him on an errand." – Incorrect tense (Past Perfect).
• Option 3: "Paul's father sends him on an errand." – Incorrect tense (Simple Present).

The correct answer is: Fugitive.

Key Points

• The word "Fugitive" refers to someone who runs away from justice or the law. (न्याय या कानून से भागने वाला)
• Example: The fugitive was caught by the police after months of investigation.
• "Felon" refers to a person who has committed a serious crime, particularly a felony. (अपराधी)
• Example: The felon served a ten-year prison sentence for his actions.
• Hence, the word "Fugitive" is the correct choice as it directly relates to someone fleeing from justice.

Therefore, the correct answer is: Fugitive.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Felon (अपराधी): A person guilty of committing a serious crime.
• Example: The felon was sentenced to life imprisonment for his actions.
• Granary (अनाज गोदाम): A storehouse for grain.
• Example: The farmers stored their harvest in a nearby granary.
• Glutton (पेटू): A person who eats excessively or greedily.
• Example: He is such a glutton that he finished an entire pizza by himself.

The correct answer is '2' i.e. 'Of its association with'.

 

Key Points

• The correct preposition to use after "association" is "with" because it indicates a connection or relationship.
• The phrase "of its association with" is grammatically correct and conveys the intended meaning of the sentence.
• Options 1, 3, and 4 are incorrect as they use inappropriate or irrelevant prepositions.

Therefore, the correct answer is Option 2.

 

Complete Sentence: "Blockchain burst into public consciousness because of its association with Satoshi Nakamoto, a mysterious individual that laid out a white paper on how blockchain could be applied to bitcoin."

 

Additional Information

• Option 1: "Of its association at" is incorrect because "at" does not convey the appropriate relationship or connection.
• Option 3: "Of its association above" is incorrect because "above" is irrelevant and does not fit the context of the sentence.
• Option 4: "No improvement" is incorrect because the original phrase "of its association for" is grammatically incorrect.

The correct answer is '4'.

 

Key Points

• The phrase "boils down" is an idiomatic expression that means "to be reduced to the essence or core of something."
• It is the correct usage in the given sentence, as it indicates the core issue being discussed.
• Options 1, 2, and 3 are incorrect as they do not fit the context or meaning of the sentence.

Therefore, the correct answer is Option 4.

 

Complete Sentence: "The issue boils down to whether we have enough finances or not."

 

Additional Information

• Option 1: "boils over" is incorrect because it refers to an emotional outburst or overflowing, which does not suit the context of the sentence.
• Option 2: "boils up" is incorrect as it suggests something rising or intensifying, which is not applicable here.
• Option 3: "boils out" is incorrect because it is not an established idiomatic expression in this context.

The correct answer is Option 1.

 

Key Points

• Indirect Speech: Gopan asked me if I could do those sums for him.
• Key Conversions:
• "said to me" becomes "asked me"
• In interrogative sentences (questions), the reporting verb "said to" is changed to asked.
• "if" or "whether" is used as a connector
• Since the direct speech is a 'Yes/No' question beginning with a modal auxiliary (Can), the conjunction if or whether is used to join the reporting verb and the reported speech.
• "Can you" becomes "I could"
• The sentence structure changes from interrogative to assertive (subject before verb).
• The pronoun "you" (object of the reporting verb) changes to "I".
• The modal "can" changes to its past form "could" because the reporting verb is in the past tense.
• "these" becomes "those" and "me" becomes "him"
• The demonstrative "these" (nearness) changes to "those" (distance).
• The pronoun "me" (the speaker Gopan) changes to "him".
• Punctuation and Format:
• The question mark is replaced by a full stop.
• Quotation marks and commas are removed.

Therefore, the correct answer is Option 1.

 

Correct Sentence: "Gopan asked me if I could do those sums for him."

 

Additional Information

• Option 2: "Gopan asked me if I can do those sums for him."
• Incorrect because it fails to change the tense of the modal verb (can should be could).
• Option 3: "Gopan asked me if I can do these sums for him."
• Incorrect because it fails to change both the tense (can) and the demonstrative (these).
• Option 4: "Gopan asked if I could do these sums for him."
• Incorrect because it fails to change "these" to "those".

The correct answer is Option 1.

 

Key Points

• Direct Speech: "The commentators were cheering on the best performance", said the contestants.
• Key Conversions:
• "had been cheering" becomes "were cheering"
• When converting from Indirect to Direct speech, the Past Perfect Continuous tense ("had been cheering") typically reverts to the Past Continuous tense ("were cheering") if the reporting verb is in the past tense.
• "reported" becomes "said"
• The reporting verb "reported" in indirect speech is commonly converted back to "said" or "reported" in direct speech.
• Conjunction Removal:
• The conjunction "that" is removed, and the reported speech is placed within quotation marks.
• Punctuation and Format:
• The direct speech starts with a capital letter and is enclosed in quotation marks.
• A comma is placed before the reporting clause ("said the contestants").

Therefore, the correct answer is Option 1.

 

Correct Sentence: "“The commentators were cheering on the best performance”, said the contestants."

 

Additional Information

• Option 2: "The commentators are cheering on the best performance", said the contestants.
• Incorrect because Present Continuous ("are cheering") would convert to Past Continuous ("were cheering"), not Past Perfect Continuous.
• Option 3: "The commentators has been cheering on the best performance", said the contestants.
• Incorrect due to subject-verb agreement ("commentators" is plural and requires "have", not "has").
• Option 4: "The contestants was cheering on the best performance", said the commentators.
• Incorrect because it swaps the roles of the subject (contestants) and the object (commentators), changing the meaning of the original sentence.

The correct answer is Option 4.

 

Key Points

• Indirect Speech: The postmaster advised the poor boy to be patient and wait for the letter.
• Key Conversions:
• "said to" becomes "advised"
• Since the sentence starts with "Please" and provides guidance, the reporting verb "said to" is changed to "advised" or "requested". In this context, "advised" fits the postmaster's role best.
• The Infinitive "to" replaces the imperative structure
• For imperative sentences (commands, requests, or advice), we use the to-infinitive (to + verb) to connect the reporting verb to the reported speech.
• The verbs "be" and "wait" become "to be" and "wait" (the "to" is understood for the second verb).
• Removal of "Please":
• The word "Please" is dropped in indirect speech because its sense of politeness is already incorporated into the reporting verb (advised/requested).
• Punctuation and Format:
• The comma and quotation marks are removed.
• The sentence ends with a full stop.

Therefore, the correct answer is Option 4.

 

Correct Sentence: "The postmaster advised the poor boy to be patient and wait for the letter."

 

Additional Information

• Option 1: "The postmaster said that since the poor boy was patient, the letter will come."
• Incorrect because it changes the meaning to a conditional statement and uses the future tense "will," which should change to "would" in the past context.
• Option 2: "The patient and poor boy was asked by the postmaster to wait for the letter."
• Incorrect because it changes the adjective "patient" into a descriptor of the boy rather than an instruction for his behavior.
• Option 3: "The postmaster asked the poor boy to be patiently waited for the letter."
• Incorrect due to ungrammatical structure ("to be patiently waited" is passive and nonsensical here).

The correct answer is: Option 2 i.e. Irregularly.

Key Points

• The phrase "by fits and starts" means to work or perform something in an irregular or inconsistent manner, often stopping and starting unpredictably. (अनियमित रूप से)
• Example: His efforts at completing the project came by fits and starts, which delayed the final deadline.
• The word "Irregularly" aligns perfectly with the meaning of the phrase "by fits and starts" and conveys the same idea of inconsistency. (अनियमित)
• Example: The water supply in the village works irregularly, causing inconvenience to the residents.

Therefore, the correct answer is: Option 2 i.e. Irregularly.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Consistently (सतत रूप से): Refers to performing something in a steady and regular manner without variations.
• Example: She consistently achieved top marks in her exams.
• In high spirits (उत्साह से भरा): Refers to being cheerful, lively, or in a happy mood.
• Example: The team was in high spirits after their victory.
• Enthusiastically (जोशपूर्वक): Refers to showing great excitement or interest in doing something.
• Example: The students participated enthusiastically in the cultural program.

The correct answer is Option 3.

Key Points

• The given sentences describe the situation in Nareshwadi Learning Centre during and after earthquakes that began in November 2018.
• Sentence A is the first sentence as it introduces the context of the earthquakes and the initial reaction of the children:
• "When the earthquakes first began in November 2018, the children of Palghar’s Nareshwadi Learning Centre were terrified."
• Sentence E follows, providing more details about the youngest children’s emotional response:
• "The youngest, aged 5-7 years, burst into tears."
• Sentence D is next, showing the progression of events five months later and introducing the efforts of the school coordinator:
• "Five months later, the tremors continue, but the children are used to it, much to the efforts of the school coordinator, Vivek Siyaram Patel."
• Sentence B comes next as it describes the coordinator’s guidance to the children to stay alert and act quickly:
• "He would like them to stay alert and dash out of their classrooms every time the ground shakes."
• Sentence C concludes the paragraph, emphasizing that the children have been trained to respond in this way:
• "That’s what they have been taught to do."
• The correct sequence is AEDBC.

Coherent paragraph after rearrangement:

"When the earthquakes first began in November 2018, the children of Palghar’s Nareshwadi Learning Centre were terrified. The youngest, aged 5-7 years, burst into tears. Five months later, the tremors continue, but the children are used to it, much to the efforts of the school coordinator, Vivek Siyaram Patel. He would like them to stay alert and dash out of their classrooms every time the ground shakes. That’s what they have been taught to do."

The correct answer is: Joyful.

Key Points

• The word "Forlorn" means feeling sad, abandoned, or hopeless. (उदास, निराश)
• Example: The forlorn puppy sat in the rain, waiting for someone to rescue him.
• "Joyful" refers to a state of happiness, delight, or great pleasure. It is the opposite of "Forlorn." (प्रसन्न, खुश)
• Example: The children were joyful as they played in the park.
• Hence, we can infer that the opposite of 'Forlorn' is 'Joyful'.

Therefore, the correct answer is: Joyful.

---

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Lucky (भाग्यशाली): Having good fortune or success.
• Example: She was lucky to win the lottery on her first try.
• Fortunate (सौभाग्यशाली): Experiencing good luck or favorable circumstances.
• Example: He felt fortunate to have such supportive friends during difficult times.
• Free (स्वतंत्र): Not under control or restriction; unbound.
• Example: He finally felt free after completing all his responsibilities.

The correct answer is option 1.

Key Points

• The correct spelling is 'Stabling'.
• The word 'Stabling' refers to the act of putting animals (usually horses) in a stable.
• Example: The horses were stabling for the night.

Additional Information

Meanings of the other options:

• Grouppings: This word is misspelled. The correct spelling is 'Groupings' which refers to the arrangement of items into groups.
• Lobotomi: This word is misspelled. The correct spelling is 'Lobotomy', which refers to a surgical operation involving the incision into the prefrontal lobe of the brain.
• Alusive: This word is misspelled. The correct spelling is 'Allusive', which means making indirect references.

The correct answer is 'rained'.

 

Key Points

• The verb "rained" is the simple past tense form of the verb "rain."
• The sentence describes an action that occurred in the past ("yesterday night"), so the past tense "rained" is required.
• Options 1, 2, and 4 are incorrect in this context.

Therefore, the correct answer is Option 3.

 

Complete Sentence: "It rained a lot yesterday night."

 

Additional Information

• Option 1: "has been raining" is incorrect because "has been" indicates present perfect continuous tense, which does not fit the past context of the sentence.
• Option 2: "did rain" is incorrect because while grammatically correct, it is not the most natural choice for this sentence.
• Option 4: "had rained" is incorrect because "had" indicates past perfect tense, which is used for actions that occurred before another past event, not for standalone past events.

The correct answer is: Option 1 i.e. revive, announced.

Key Points

• The word "revive" means to bring something back to life, restore, or renew something that has been inactive or declining. (पुनर्जीवित करना)
• Example: The government implemented policies to revive the economy after the recession.
• The word "announced" refers to making something publicly known or declaring it officially. (घोषणा करना)
• Example: The principal announced the winners of the competition during the assembly.
• The sentence implies a past event where the Finance Minister took an action to restore investment activity and declared a sharp cut in corporate taxes. Hence, "revive" and "announced" fit perfectly in the blanks.

Therefore, the correct answer is: Option 1 i.e. revive, announced.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Option 2: revives, announce (पुनर्जीवित करता है, घोषणा करना):
• Explanation: "Revives" is in the present tense, while "announce" is the base form of the verb. This does not fit the context of a past event.
• Example: He revives old traditions and announces them to the public.
• Option 3: reviving, announces (पुनर्जीवित करते हुए, घोषणा करता है):
• Explanation: "Reviving" is the present participle form, and "announces" is in the present tense. This combination is incorrect because the sentence describes a completed action in the past.
• Example: She is reviving old traditions and announces them on social media.
• Option 4: revived, announced (पुनर्जीवित किया, घोषणा की):
• Explanation: While both verbs are in the past tense, "revived" suggests that the investment activity had already been restored, which contradicts the sentence's intent of taking an action to restore it.
• Example: The company revived its operations and announced new hiring policies.

The correct answer is: Timidity.

Key Points

• The word "Brashness" refers to behavior that is rude, overconfident, or impetuous. (अशिष्टता, बेअदबी)
• Example: His brashness at the meeting offended many of his colleagues.
• The word "Timidity" refers to the quality of being shy or lacking in confidence. (संकोच, झिझक)
• Example: Her timidity prevented her from speaking up during the presentation.
• Since "Brashness" refers to bold or impetuous behavior, its most appropriate antonym is "Timidity."

Therefore, the correct answer is: Timidity.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Boldness (साहस): The quality of being confident and daring.
• Example: His boldness in standing up to the unfair policy was commendable.
• Intelligence (बुद्धिमत्ता): The ability to acquire and apply knowledge and skills.
• Example: Her intelligence was evident in the way she solved complex problems with ease.
• Nerve (हिम्मत): Courage or audacity to face difficult situations.
• Example: It took a lot of nerve for him to speak in front of such a large crowd.

The correct answer is: Option 1 i.e. Valiant.

Key Points

• The word "Cowardly" means lacking courage or bravery; someone who is excessively afraid or timid. (डरपोक)
• Example: He was too cowardly to stand up for his beliefs.
• "Valiant" refers to someone who shows courage, bravery, and determination in challenging situations. (साहसी)
• Example: The valiant soldier fought bravely in the battle despite overwhelming odds.
• Since "Valiant" represents the opposite of "Cowardly," it is the most appropriate antonym.

Therefore, the correct answer is: Option 1 i.e. Valiant.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Integral (अखंड): Refers to something that is essential or necessary for completeness.
• Example: The engine is an integral part of a car.
• Spineless (कायर): Means lacking strength, courage, or determination; cowardly in nature.
• Example: His spineless attitude prevented him from taking a stand.
• Fleeting (क्षणिक): Refers to something that lasts for a very short time or is temporary.
• Example: The happiness she felt was fleeting as reality set in.

The correct answer is Lion tailed macaque.

Key Points

• Kudremukh National Park is located in the Chikkamagaluru district of the state of Karnataka, India. It is nestled in the Western Ghats, which is a UNESCO World Heritage Site.
• The Lion-tailed macaque (Macaca silenus) is the most significant and flagship species of this park. This primate is endemic to the Western Ghats and is currently categorized as Endangered on the IUCN Red List. Hence, the statement that it is the main attraction is correct.
• The park was formally declared a National Park in the year 1987. It covers an expansive area of approximately 600.32 square kilometers, making it one of the largest protected areas of tropical wet evergreen forest in the Western Ghats.
• The name Kudremukh literally translates to 'Horse-face' in the local Kannada language, referring to a specific mountain peak within the park that resembles the face of a horse.
• The park is characterized by a unique landscape of Shola-grassland ecosystems. It is a high-rainfall region, receiving more than 7,000 mm of annual precipitation, which sustains several perennial rivers.

Additional Information

• Biodiversity and Fauna:
• Apart from the Lion-tailed macaque, the park is home to several other wildlife species including the Tiger, Leopard, Wild Dog (Dhole), Golden Jackal, and Sloth Bear.
• The Malabar Giant Squirrel and the Common Langur are also frequently sighted inhabitants of these dense forests.
• River Sources:
• The park is the origin point of three important rivers: the Tunga, the Bhadra, and the Netravati. These rivers are vital for the agriculture and ecology of Karnataka.
• Comparison of Options:
• Black buck: This animal is primarily found in open plains and dry deciduous forests. In Karnataka, the Ranebennur Blackbuck Sanctuary is famous for them, but they are not the main attraction of the hilly, evergreen Kudremukh.
• Lion: The Asiatic Lion is found exclusively in the Gir National Park in Gujarat. There are no wild lions in the Western Ghats.
• Tiger: While Tigers are present in Kudremukh (it is part of a larger tiger conservation landscape), the Lion-tailed macaque is the specific flagship species that defines the park's global conservation importance.

Important Points

• Conservation History: For many years, the area faced environmental threats due to iron ore mining by the Kudremukh Iron Ore Company Limited (KIOCL). However, following a landmark Supreme Court ruling in 2002, mining operations were ordered to stop to protect the fragile ecosystem.
• Flora: The vegetation consists of Southern Hill Tropical Evergreen forests. Important tree species include Mesua ferrea and Calophyllum elatum.
• Climate: The temperature varies from 11°C in the winter (December to January) to about 35°C during the summer (March to May). The best time to visit for wildlife enthusiasts is usually between October and May.

The correct answer is Hemis National Park.

Key Points

• Hemis National Park is a high-altitude national park located in the Ladakh Union Territory of India. It is globally famous for being the "Snow Leopard Capital of the World," as it has the highest density of snow leopards (Panthera uncia) in any protected area worldwide.
• Established in 1981, the park originally covered an area of about 600 sq km, but it was later expanded in 1987 and 1990 to its current size of approximately 4,400 sq km, making it the largest national park in India and South Asia.
• The park is situated in the Eastern Ladakh region, with altitudes ranging from 3,300 to 6,000 meters above sea level. It is bounded on the north by the banks of the Indus River and includes the catchments of Markha, Sumdah, and Rumbak.
• Apart from the snow leopard, the park is home to other rare high-altitude fauna, including the Argali (Great Tibetan Sheep), Bharal (Blue Sheep), Shapu (Ladakhi Urial), and the Asiatic Ibex. It also serves as a vital habitat for birds like the Golden Eagle and the Lammergeier vulture.
• The park contains the famous Hemis Monastery, which is over 400 years old and is one of the wealthiest and most important Buddhist monasteries in Ladakh. Hence, Option D is the correct answer.

Additional Information

• Bhitarkanika National Park:
• Located in the Kendrapara district of Odisha, it was designated as a national park in 1998.
• It is renowned for its mangrove ecosystem and is the second-largest mangrove forest in India after the Sundarbans.
• The park is most famous for the Saltwater Crocodile (Crocodylus porosus) and is a Ramsar site (designated in 2002).
• Nagarhole National Park:
• Also known as Rajiv Gandhi National Park, it is located in the Kodagu and Mysuru districts of Karnataka.
• It was established as a wildlife sanctuary in 1955 and upgraded to a national park in 1988.
• It is an integral part of the Nilgiri Biosphere Reserve and is famous for its healthy population of Tigers, Indian Elephants, and Indian Bison (Gaur).
• Marine National Park:
• Located in the Gulf of Kutch, near Jamnagar in Gujarat, it was created in 1982.
• It is the first marine national park in India and consists of an archipelago of 42 islands.
• The park is famous for its coral reefs, mangroves, and marine life such as Dugongs, Sea Turtles, and various species of crustaceans and mollusks.

Important Points

• Conservation Status: The snow leopard is listed as "Vulnerable" on the IUCN Red List and is protected under Schedule I of the Indian Wildlife Protection Act, 1972.
• Project Snow Leopard: This is a centrally-sponsored project launched in 2009 by the Government of India to promote a knowledge-based and adaptive conservation framework for the snow leopard and its unique Himalayan habitat.
• State Symbols: The snow leopard was declared the State Animal of the Union Territory of Ladakh in 2021 and is also the state animal of Himachal Pradesh.
• Climate: Hemis National Park experiences a cold desert climate with very low rainfall and temperatures that can drop below -20 degrees Celsius during the winter months, which is the best time for snow leopard sightings.

The correct answer is Crop production.

Key Points

• The Green Revolution refers to a period of intense agricultural transformation that began in the 1960s, specifically aimed at increasing crop production to address global hunger and ensure food security.
• It involved the introduction of High-Yielding Variety (HYV) seeds, particularly for wheat and rice, which were designed to produce more grain per plant compared to traditional varieties.
• The movement was heavily influenced by the adoption of modern agricultural techniques, including the large-scale use of chemical fertilizers, pesticides, and advanced irrigation systems.
• The primary objective was to transform India and other developing nations from a food-deficient economy to a food-surplus nation through intensive crop production strategies.
• It led to a significant increase in the yield per hectare, allowing countries to reduce their dependence on food imports and stabilize internal food prices.

Additional Information

• Global Origins: The Green Revolution was globally led by Norman Borlaug, often called the "Father of the Green Revolution," who received the Nobel Peace Prize in 1970 for his work in developing high-yield wheat.
• Indian Context: In India, the movement was spearheaded by M.S. Swaminathan, known as the "Father of the Green Revolution in India," who integrated Borlaug's methods with Indian agro-climatic conditions.
• Geographical Impact: The initial phase in India focused on states with assured irrigation, such as Punjab, Haryana, and Western Uttar Pradesh, where the production of wheat saw a massive surge.
• Technological Inputs: It necessitated the use of tractors, electric pumps, and harvesters, shifting agriculture from a labor-intensive traditional practice to a capital-intensive industrial process.
• Impact on Economy: The Green Revolution contributed to the growth of the GDP and provided employment opportunities in the transport, warehousing, and food processing sectors.

Important Points

• Environmental Concerns: While it boosted crop production, long-term effects included soil degradation, depletion of groundwater levels, and loss of biodiversity due to monocropping.
• Chemical Usage: The excessive use of synthetic fertilizers and pesticides led to chemical runoff into water bodies, affecting the ecosystem and human health.
• Social Disparity: The revolution primarily benefited large farmers who could afford expensive inputs, leading to an increase in income inequality in rural areas.
• Second Green Revolution: Currently, there is a call for an Evergreen Revolution or a Second Green Revolution that focuses on sustainable agriculture, organic farming, and nutritional security beyond just crop production volume.
• Relevant Legislation: In the context of India, several government initiatives like the National Food Security Act (2013) build upon the production foundations laid during the Green Revolution years.

The correct answer is Typhoid.

Key Points

• Typhoid fever is a life-threatening systemic infection caused by the bacterium Salmonella enterica serotype Typhi. It is a human-specific pathogen, meaning it is only carried and transmitted by humans.
• The disease is primarily characterized by a sustained high fever that can reach as high as 39° to 40° C (103° to 104° F). Other common symptoms include weakness, stomach pain, headache, and loss of appetite.
• Transmission of the Salmonella Typhi bacteria occurs via the fecal-oral route. This usually happens when an individual consumes contaminated food or water that has been handled by an infected person or a chronic carrier who sheds the bacteria in their feces.
• In some patients, a rash consisting of small, flat, rose-colored spots may appear on the chest or abdomen. If left untreated, the infection can lead to severe intestinal perforation or internal hemorrhaging, which can be fatal.
• A famous historical example of a carrier is Mary Mallon, popularly known as "Typhoid Mary," who was an asymptomatic carrier in New York during the early 1900s and unintentionally infected many people while working as a cook.

Additional Information

• Malaria: This is a disease caused by Plasmodium parasites, which are transmitted to humans through the bites of infected female Anopheles mosquitoes. It is not caused by Salmonella but is common in tropical and subtropical regions.
• Yellow Fever: It is an acute viral hemorrhagic disease transmitted by infected Aedes aegypti mosquitoes. It is characterized by jaundice (yellowing of the skin and eyes), and it is most prevalent in parts of Africa and South America.
• Diarrhoea: This is a condition defined by the passage of three or more loose or liquid stools per day. While it is a symptom of Typhoid, it can be caused by various other agents including viruses like Rotavirus or bacteria like Vibrio cholerae and Escherichia coli.
• Diagnosis: The most common diagnostic tool for Typhoid in many developing nations is the Widal test, which detects antibodies against the O and H antigens of Salmonella Typhi.
• Prevention: Prevention strategies include vaccination (such as the Vi conjugate vaccine), improving sanitation, and ensuring access to safe drinking water.

Important Points

• The World Health Organization (WHO) estimates that there are between 11 and 21 million cases of typhoid fever annually, with the highest burden seen in South-East Asia and Sub-Saharan Africa.
• Modern treatment involves the use of antibiotics such as Ciprofloxacin, Azithromycin, or Ceftriaxone. However, there is increasing global concern regarding Extensively Drug-Resistant (XDR) typhoid strains that do not respond to standard treatments.
• Salmonella Typhi lives only in humans. Unlike other Salmonella strains (like those causing food poisoning), it cannot be caught from animals.
• The incubation period for the disease usually ranges from 6 to 30 days, after which the symptoms begin to manifest gradually.

The correct answer is 1969.

Key Points

• The U.S. Food and Drug Administration (FDA) first published the Good Manufacturing Practices (GMP) regulations for food in 1969.
• These regulations are widely known as the "Umbrella GMP" because they provide a broad set of guidelines that apply to all types of food manufacturing and processing, regardless of the specific product.
• Originally, these guidelines were codified under 21 CFR Part 128, but they were later moved and redesignated as 21 CFR Part 110 in the Code of Federal Regulations.
• The primary goal of the 1969 publication was to establish sanitary standards for the food industry to ensure that food products are safe, wholesome, and produced under clean conditions.
• The Umbrella GMP focuses on preventing food adulteration by setting requirements for personnel hygiene, facility maintenance, and equipment cleanliness.

Additional Information

• Evolution of GMPs: Following the initial 1969 release, the regulations underwent a significant revision in 1986 to incorporate advancements in food science and manufacturing technology.
• Food Safety Modernization Act (FSMA): In 2011, President Barack Obama signed the FSMA into law, which led to the transition of many food GMP requirements into 21 CFR Part 117, emphasizing Preventive Controls for Human Food.
• Scope of Application: The Umbrella GMP applies to various sectors including warehousing, packaging, labeling, and distribution of food products within the United States and for products imported into the country.
• Specific GMPs: While the Umbrella GMP covers general manufacturing, the FDA also has specific GMPs for certain categories such as Bottled Water (21 CFR Part 129) and Low-Acid Canned Foods (21 CFR Part 113).
• Global Influence: The FDA's framework for GMP has served as a foundational model for international organizations like the World Health Organization (WHO) and the Codex Alimentarius Commission in developing global food safety standards.

Important Points

• Personnel Requirements: Under GMP, management is responsible for ensuring that all employees working in direct contact with food follow strict cleanliness and hygiene protocols to prevent microbiological contamination.
• Plant and Grounds: The regulations require that the physical plant and surrounding grounds be maintained in a way that prevents pest infestation and provides adequate drainage and waste disposal.
• Equipment and Utensils: All machinery used in food processing must be designed and constructed to be easily cleanable and sanitized, preventing the buildup of harmful bacteria.
• Sanitary Operations: This includes the regular use of toxic cleaning compounds in a safe manner and ensuring that food-contact surfaces are maintained in a sanitary condition.
• Process Controls: Manufacturers must implement quality control procedures to monitor temperature, pH levels, and moisture content during production to ensure food safety.

The correct answer is Madhya Pradesh.

Key Points

• Nauradehi Wildlife Sanctuary is the largest wildlife sanctuary in the state of Madhya Pradesh, India, covering an area of approximately 1,197 square kilometers.
• The sanctuary was established in the year 1975 and is spread across four districts: Sagar, Damoh, Narsinghpur, and Raisen.
• It is situated in the Vindhyan Range of mountains and serves as a crucial ecological link between the Panna Tiger Reserve and the Satpura Tiger Reserve, facilitating the movement of tigers and other carnivores.
• The sanctuary is characterized by its Dry Deciduous Forest ecosystem, which provides a unique habitat for various flora and fauna species native to central India.
• Due to its vast landscape and low human interference, Nauradehi has been identified as a potential site for the Cheetah Reintroduction Project in India, similar to the Kuno National Park.

Additional Information

• Geographical Features: The landscape of Nauradehi is dominated by plateaus and hilly terrains. Two major rivers, the Bamner River and the Vyarma River, flow through or along the borders of the sanctuary, serving as primary water sources for the resident wildlife.
• Flora and Vegetation: The forest mainly consists of Teak (Tectona grandis), Saja, Dhaora, Amla, and Palas. The grasslands within the sanctuary are vital for the survival of herbivore populations.
• Wildlife (Fauna): The sanctuary is famous for being a stronghold for the Indian Wolf. Other significant species found here include the Leopard, Sloth Bear, Striped Hyena, Wild Dog (Dhole), Chinkara, Nilgai, Blackbuck, and Cheetal (Spotted Deer).
• Tiger Reintroduction: In 2018, a tiger reintroduction program was initiated in Nauradehi, where tigers from Bandhavgarh and Kanha were translocated to help revive the local tiger population.
• Status of Other States:
• Gujarat: Known for the Gir National Park, which is the only natural habitat of the Asiatic Lion in the world.
• Maharashtra: Home to several major tiger reserves like Tadoba-Andhari and wildlife sanctuaries like Koyna and Radhanagari.
• Andhra Pradesh: Features the Nagarjunsagar-Srisailam Tiger Reserve, which is the largest tiger reserve in India by area.

Important Points

• Veerangana Durgavati Tiger Reserve: In September 2023, the Government of India and the Government of Madhya Pradesh notified the creation of the Veerangana Durgavati Tiger Reserve. This new reserve was formed by merging Nauradehi Wildlife Sanctuary with the Rani Durgavati Wildlife Sanctuary.
• This newly formed reserve became the 7th tiger reserve in Madhya Pradesh and the 54th tiger reserve in India.
• Administrative Significance: The sanctuary is managed by the Madhya Pradesh Forest Department. Its transformation into a tiger reserve is expected to provide higher levels of protection and funding for conservation activities.
• Eco-Tourism: Tourism is permitted in specific zones of the sanctuary, with entry points located at Mohli and Sarai. These areas offer opportunities for wildlife enthusiasts to observe the Indian Wolf and various avian species in their natural habitat.

The correct answer is 206.

Key Points

• The adult human skeletal system consists of exactly 206 bones, providing a framework for the body.
• The skeleton is divided into two primary sections: the Axial Skeleton and the Appendicular Skeleton.
• The Axial Skeleton comprises 80 bones, which include the Skull, the Vertebral Column, and the Thoracic Cage (ribs and sternum).
• The Appendicular Skeleton consists of 126 bones, forming the upper and lower limbs as well as the pectoral and pelvic girdles that attach the limbs to the axial frame.
• Bone tissue is a dynamic structure that performs vital functions such as locomotion, protection of internal organs, and storage of minerals like calcium and phosphorus.

Additional Information

• Age-related changes: At birth, a newborn infant has approximately 270 to 300 bones. As the individual reaches adulthood, many of these bones undergo fusion (such as the segments of the sacrum and the skull), resulting in the final count of 206.
• Longest Bone: The Femur, located in the thigh, is the longest, heaviest, and strongest bone in the human body. It supports the weight of the body during walking and running.
• Smallest Bone: The Stapes is the smallest bone in the human body, located in the middle ear. It is approximately 3 millimeters long and is essential for hearing by transmitting sound vibrations.
• Composition: Bones are made of an organic matrix (mostly collagen) and inorganic minerals (primarily hydroxyapatite, a form of calcium phosphate).
• Hematopoiesis: Certain bones contain red bone marrow, which is the primary site for the production of blood cells, including erythrocytes (red blood cells) and leukocytes (white blood cells).

Important Points

• The Skull: It contains 22 bones, categorized into 8 cranial bones that protect the brain and 14 facial bones that form the structure of the face.
• Rib Cage: Humans typically have 12 pairs of ribs, totaling 24. These are classified as true ribs, false ribs, and floating ribs based on their attachment to the sternum.
• The Hyoid Bone: This U-shaped bone located in the neck is unique because it is the only bone in the human body that does not articulate (connect) with any other bone.
• Joints and Connective Tissue: Bones are connected to other bones via ligaments, while muscles are attached to bones via tendons, allowing for leveraged movement.
• Bone Classification: Based on shape, bones are classified into long (e.g., humerus), short (e.g., carpals), flat (e.g., scapula), irregular (e.g., vertebrae), and sesamoid (e.g., patella).

The correct answer is Charles Darwin.

Key Points

• Charles Darwin, an English naturalist, published his landmark book "On the Origin of Species" on November 24, 1859. This work is considered the foundation of evolutionary biology.
• In this book, Darwin introduced the scientific theory that populations evolve over generations through a process known as natural selection.
• He provided a wealth of evidence that the diversity of life arose by common descent through a branching pattern of evolution.
• Darwin’s theory explained that individuals with traits better suited to their environment are more likely to survive and reproduce, passing those traits to the next generation.
• The book was highly controversial at the time of its 19th-century publication because it challenged prevailing religious and scientific beliefs about the creation of species.

Additional Information

• Jean-Baptiste Lamarck:
• He was a French naturalist who proposed an earlier theory of evolution in the early 1800s.
• His theory, known as Lamarckism, suggested that organisms could pass on acquired characteristics to their offspring.
• A famous example is the giraffe stretching its neck to reach high leaves, which Lamarck believed caused the neck to grow longer and be inherited by the next generation. This statement is incorrect in the context of modern genetics.
• Gregor Mendel:
• Known as the "Father of Genetics", Mendel was an Austrian monk who conducted experiments on pea plants between 1856 and 1863.
• He discovered the basic principles of heredity, showing that traits are transferred through discrete units (genes).
• While his work laid the groundwork for genetics, he did not write "Origin of Species." Hence, this option is incorrect.
• Hugo De Vries:
• A Dutch botanist who is famous for proposing the Mutation Theory of evolution in the early 1900s.
• He suggested that new species arise from sudden changes (mutations) rather than the gradual accumulation of variations described by Darwin.
• His research was based on the evening primrose plant. This option is incorrect as he was not the author of the 1859 book.

Important Points

• Darwin's insights were largely shaped by his five-year voyage on the HMS Beagle (1831–1836), during which he visited the Galapagos Islands.
• The term "Survival of the Fittest" was actually coined by Herbert Spencer after reading Darwin's work, though Darwin adopted it in later editions of his book.
• The modern scientific understanding of evolution, called the Modern Synthesis, combines Darwin’s natural selection with Mendelian genetics to explain how evolution works at the molecular level.
• The publication of "The Descent of Man" in 1871 was another significant work by Darwin, where he applied his evolutionary theory specifically to human beings.

The correct answer is Kidney.

Key Points

• The nephron is the microscopic structural and functional unit of the kidney. It is composed of a renal corpuscle and a renal tubule.
• Each human kidney contains approximately 1 million to 1.3 million nephrons. Their primary function is to filter blood and regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed, and excreting the rest as urine.
• The renal corpuscle consists of a tuft of capillaries called the glomerulus and an encompassing Bowman's capsule. This is where the initial filtration of blood plasma occurs.
• The renal tubule is specialized into various sections: the Proximal Convoluted Tubule (PCT), the Loop of Henle, and the Distal Convoluted Tubule (DCT). These sections are responsible for the selective reabsorption of glucose, amino acids, and electrolytes back into the bloodstream.
• Nephrons are essential for homeostasis, as they manage blood pressure (via the renin-angiotensin system), maintain acid-base balance, and eliminate metabolic wastes such as urea and creatinine.

Additional Information

• Lungs:
• The functional unit of the lungs is the alveolus (plural: alveoli). These are tiny air sacs where gas exchange (oxygen and carbon dioxide) takes place between the air and the blood.
• There are roughly 300 million to 500 million alveoli in a pair of human lungs, providing a massive surface area of approximately 70 to 100 square meters for diffusion.
• Brain:
• The structural and functional unit of the brain and the nervous system is the neuron (nerve cell).
• The human brain contains about 86 billion to 100 billion neurons. They communicate using electrical impulses and chemical signals called neurotransmitters across gaps known as synapses.
• Pancreas:
• The pancreas is a dual-function gland (both endocrine and exocrine). Its endocrine units are the Islets of Langerhans, which contain Alpha cells (secreting glucagon) and Beta cells (secreting insulin).
• Its exocrine units are acini, which produce digestive enzymes like trypsin, lipase, and amylase that are released into the small intestine.
• Anatomy of the Kidney:
• The kidneys are bean-shaped organs located in the retroperitoneal space, typically between the levels of the T12 and L3 vertebrae.
• An average adult kidney is about 10-12 cm long, 5-7 cm wide, and weighs between 120g and 170g.

Important Points

• Urine Formation: This involves three main steps: Glomerular filtration, Tubular reabsorption, and Tubular secretion. On average, 180 liters of filtrate are produced daily, but only 1.5 liters are excreted as urine.
• Types of Nephrons: There are two types: Cortical nephrons (about 85%), which have short loops of Henle, and Juxtamedullary nephrons (about 15%), which have long loops of Henle extending deep into the renal medulla to concentrate urine.
• Blood Supply: The kidneys receive about 20-25% of the total cardiac output via the renal arteries, highlighting their critical role in blood purification.

The correct answer is Helium.

Key Points

• Helium is a chemical element with the symbol He and atomic number 2. It is the first member of the Noble Gas group in the periodic table.
• It is the second lightest and second most abundant element in the observable universe, being present at a mass of approximately 24% of the total elemental mass.
• Helium is widely used in balloons and airships because its density is much lower than that of air, providing significant buoyancy. Unlike Hydrogen, which is lighter but highly explosive, Helium is non-flammable, making it a safe lifting gas for decorative balloons and large scale meteorological airships.
• Because it is chemically inert, it does not react with the materials of the balloon or the oxygen in the atmosphere, ensuring stability during flight.

Additional Information

• Discovery: Helium was first detected as an unknown yellow spectral line signature in sunlight during a solar eclipse in 1868 by French astronomer Pierre Janssen. It was later named after the Greek word for the Sun, 'Helios'.
• Cryogenics: Liquid helium is used in cryogenics to cool superconducting magnets. Its boiling point is the lowest among all elements at 4.22 Kelvin (-268.93°C), which is essential for the operation of MRI (Magnetic Resonance Imaging) scanners and Large Hadron Colliders.
• Deep-Sea Diving: Divers use a mixture of Helium and Oxygen known as Heliox. This prevents nitrogen narcosis, a condition caused by breathing nitrogen at high partial pressures, which can have an intoxicating effect on the brain.
• Industrial Leak Detection: Due to its small atomic size and high rate of diffusion, Helium is used as a tracer gas to detect leaks in high-vacuum equipment and high-pressure containers.

Important Points

• Physical Properties: Helium is a colorless, odorless, tasteless, and non-toxic gas. It belongs to Group 18 and Period 1 of the periodic table.
• Extraction: Most of the world's Helium is extracted from natural gas deposits through a process called fractional distillation. Significant producers include the USA, Qatar, and Algeria.
• Rocketry: In aerospace, Helium is used to purge fuel tanks and propellant systems in rockets powered by liquid oxygen and liquid hydrogen.
• Safety Warning: While it is used for "funny voice" effects because it travels faster than air across vocal cords, inhaling Helium is dangerous as it can cause asphyxiation by displacing the oxygen required for normal breathing.

The correct answer is Epidermis.

Key Points

• Vitamin D synthesis occurs primarily in the epidermis, which is the outermost layer of the human skin. When the skin is exposed to ultraviolet B (UVB) radiation from sunlight (wavelengths of 290–315 nm), it triggers the production of this essential nutrient. Hence, the option Epidermis is correct.
• The process involves a precursor molecule called 7-dehydrocholesterol, which is found in high concentrations within the stratum basale and stratum spinosum layers of the epidermis. Upon absorbing UVB rays, this precursor is converted into pre-vitamin D3.
• Following its formation, pre-vitamin D3 undergoes a rapid thermal isomerization process to become Vitamin D3 (also known as cholecalciferol). This molecule is then released into the extracellular space and enters the capillary network in the dermis for transport.
• While the epidermis is the site of production, the Vitamin D3 must be activated by the liver and then the kidneys to become the biologically active hormone known as calcitriol (1,25-dihydroxyvitamin D).
• Factors such as geographic location, time of day, season, and melanin levels in the epidermis significantly impact the efficiency of Vitamin D production. For instance, individuals with darker skin require longer sun exposure to produce the same amount of Vitamin D as those with lighter skin.

Additional Information

• Dermis:
• The Dermis is the thick layer of living tissue below the epidermis. It contains blood vessels, nerve endings, sweat glands, and hair follicles.
• While it supports the epidermis and contains the capillaries that carry Vitamin D away, it is not the primary site where Vitamin D is synthesized. Hence, the option Dermis is incorrect.
• Hypodermis:
• Also known as the subcutaneous layer, the Hypodermis consists mainly of adipose tissue (fat) and connective tissue.
• Its primary functions include insulation, energy storage, and cushioning the body against physical trauma. It does not play a direct role in photochemical synthesis of vitamins. Hence, the option Hypodermis is incorrect.
• Endodermis:
• The Endodermis is an inner layer of cells found in plants, specifically surrounding the vascular tissue in roots and some stems.
• It acts as a biological checkpoint for water and minerals entering the xylem. It is not a component of human anatomy. Hence, the option Endodermis is incorrect.
• Importance of Vitamin D:
• Vitamin D is crucial for calcium absorption in the intestines, which maintains bone density and prevents conditions like Rickets in children and Osteomalacia in adults.
• It also plays a vital function in immune system modulation, muscle function, and cell growth.

Important Points

• Daily Requirement: Most health organizations recommend a daily intake of 600 to 800 IU (International Units) of Vitamin D for adults, though this varies by age and health status.
• Sun Exposure Safety: While sunlight is the best natural source, excessive UV exposure can lead to DNA damage in the epidermal cells, potentially causing skin cancer. Experts suggest 10 to 30 minutes of midday sun exposure several times a week for adequate Vitamin D levels.
• Dietary Sources: If sunlight exposure is insufficient, Vitamin D can be obtained from fatty fish (like salmon and mackerel), egg yolks, and fortified foods like milk and cereals.

The correct answer is N m⁻².

Key Points

• Pressure is defined as the physical force exerted perpendicularly on a unit area of a surface. It is a measure of how concentrated a force is on a specific surface.
• The mathematical formula for pressure is P = F / A, where P represents Pressure, F represents the Force applied, and A represents the Area over which the force is distributed.
• In the International System of Units (SI), the unit of Force is the Newton (N) and the unit of Area is the square meter (m²). Consequently, the derived SI unit for pressure is Newton per square meter, which is expressed as N/m² or N m⁻².
• This SI unit is also formally known as the Pascal (Pa), named in honor of the 17th-century French mathematician and physicist Blaise Pascal, who conducted extensive research on hydrostatics and hydrodynamics.
• The dimensional formula of pressure is [M¹ L⁻¹ T⁻²], derived from the dimensions of force [M¹ L¹ T⁻²] divided by the dimensions of area [L²].

Additional Information

• Atmospheric Pressure: This is the pressure exerted by the weight of the air in the Earth's atmosphere. At sea level, the standard atmospheric pressure is defined as 101,325 Pa or 1 atmosphere (atm).
• Alternative Units: Apart from Pascals, pressure is often measured in other units such as bar, millibar, torr, and pounds per square inch (psi). Specifically, 1 bar is equal to 100,000 Pa (or 10⁵ Pa), and 760 torr is equal to 1 atm.
• Scalar Quantity: Although force is a vector, Pressure is a scalar quantity. This is because pressure at a point in a fluid acts in all directions equally and does not have a specific directional component associated with its magnitude.
• Measurement Instruments: The Barometer, invented by Evangelista Torricelli in 1643, is the primary instrument used to measure atmospheric pressure. A Manometer is used to measure the pressure of gases or liquids in a closed container, and a Sphygmomanometer is used specifically for measuring blood pressure in humans.
• CGS System: In the Centimetre-Gram-Second (CGS) system, the unit of pressure is the barye (Ba), which is defined as 1 dyne per square centimeter (dyn/cm²).

Important Points

• Relationship with Area: For a constant amount of force, the pressure is inversely proportional to the area. This principle explains why sharp tools (like knives or needles) have a very small surface area to maximize pressure, and why heavy trucks have wide tires to minimize the pressure exerted on the road.
• Fluid Pressure: The pressure in a static liquid increases with depth. The formula for hydrostatic pressure is P = hρg, where h is the depth, ρ (rho) is the density of the liquid, and g is the acceleration due to gravity (approx 9.8 m/s²).
• Pascal's Law: This law states that any change in pressure applied to an enclosed incompressible fluid is transmitted undiminished to every portion of the fluid and to the walls of the container. This is the foundational principle for hydraulic lifts, hydraulic brakes, and presses used in heavy industry.
• Standard Temperature and Pressure (STP): In chemistry and physics, STP is often used as a reference point, where the standard pressure is taken as 1 bar or 100,000 Pa (according to IUPAC guidelines since 1982).

The correct answer is Hertz.

Key Points

• Frequency is defined as the number of cycles or occurrences of a repeating event per unit of time. In physics, it describes how often a wave (such as sound or light) oscillates in one second.
• The SI unit of frequency is Hertz, which is abbreviated as Hz. This unit is globally recognized under the International System of Units.
• The unit is named after Heinrich Rudolf Hertz, a German physicist who, in the late 19th century (specifically 1887), was the first to conclusively prove the existence of electromagnetic waves.
• One Hertz is mathematically defined as one cycle per second (1 Hz = 1 s⁻¹). If a heart beats at a frequency of 1.2 Hz, it means it beats 1.2 times every second.
• The relationship between frequency (f) and the time period (T) of an oscillation is inversely proportional, expressed by the formula f = 1/T, where T is measured in seconds.

Additional Information

• Newton (N): This is the SI derived unit of force. It is named after Sir Isaac Newton. One Newton is defined as the force needed to accelerate a mass of one kilogram at a rate of one metre per second squared (1 N = 1 kg·m/s²).
• Pascal (Pa): This is the SI unit of pressure and stress. It is named after the French scientist Blaise Pascal. One Pascal is equal to one Newton per square metre (1 Pa = 1 N/m²). It is commonly used in meteorology to measure atmospheric pressure.
• Joule (J): This is the SI unit of energy, work, or heat. It is named after James Prescott Joule. One Joule is the amount of work done when a force of one Newton displaces an object by one metre in the direction of the force (1 J = 1 N·m).
• Frequency Multiples: For higher frequencies, prefixes are used: Kilohertz (1 kHz = 10³ Hz), Megahertz (1 MHz = 10⁶ Hz), and Gigahertz (1 GHz = 10⁹ Hz). These are standard in telecommunications and computing (e.g., CPU clock speed).

Important Points

• Audible Range: For humans, the standard audible frequency range is between 20 Hz and 20,000 Hz (20 kHz). Frequencies below this are Infrasonic, and those above are Ultrasonic.
• Pitch and Frequency: In acoustics, the pitch of a sound is directly determined by its frequency. A high-frequency wave produces a high-pitched sound (like a whistle), while a low-frequency wave produces a low-pitched sound (like a bass drum).
• Radio Frequencies: The electromagnetic spectrum uses frequency to categorize waves. For example, FM radio usually operates in the 88 to 108 MHz range, while 5G cellular networks operate in higher GHz bands.
• Angular Frequency: In rotational motion or oscillatory systems, angular frequency (ω) is often used, measured in radians per second (rad/s), related to frequency by ω = 2πf.

The correct answer is n-butane.

Key Points

• Isomers are molecules that share the same chemical formula but possess different structural arrangements of atoms. Methyl propane and n-butane are classic examples of chain isomers because they both have the molecular formula C4H10.
• Methyl propane (also known as isobutane) consists of a three-carbon chain with a methyl group (-CH3) attached to the second carbon atom. This branching distinguishes its physical properties from its straight-chain counterpart.
• n-butane is a straight-chain alkane where all four carbon atoms are connected in a continuous row. Because it has the same number of carbon and hydrogen atoms as methyl propane, they are isomers. Hence, the statement regarding n-butane being the isomer of methyl propane is correct.
• n-propane has the chemical formula C3H8. Since it only contains three carbon atoms, it cannot be an isomer of a four-carbon compound like methyl propane. Hence, the statement regarding n-propane is incorrect.
• n-pentane has the chemical formula C5H12. With five carbon atoms, it belongs to a different molecular weight category and cannot be an isomer of methyl propane. Hence, the statement regarding n-pentane is incorrect.
• n-hexane has the chemical formula C6H14. It contains six carbon atoms, making it significantly larger than the four-carbon methyl propane. Hence, the statement regarding n-hexane is incorrect.

Additional Information

• Alkanes: These are saturated hydrocarbons characterized by single covalent bonds between carbon atoms. The general formula for alkanes is CnH2n+2. As the number of carbon atoms increases, the potential for isomerism also increases significantly.
• Physical Properties: While isomers have the same formula, their physical properties like boiling point and melting point differ. For instance, n-butane has a higher boiling point (-0.5 degrees Celsius) compared to methyl propane (-11.7 degrees Celsius). This is because straight chains have a larger surface area, leading to stronger Van der Waals forces.
• Uses of Butane: Butane (both isomers) is primarily used as a fuel in LPG (Liquefied Petroleum Gas), cigarette lighters, and as a refrigerant (specifically R-600a for isobutane) to replace ozone-depleting substances.
• Occurrence: Both n-butane and isobutane are found in natural gas and crude oil. They are separated during the refining process or through fractional distillation.
• Structural Isomerism types: Besides chain isomerism (seen in butane), other types include position isomerism (difference in the location of a functional group) and functional isomerism (same formula but different functional groups, like ethanol and dimethyl ether).

Important Points

• Isomer Count by Carbon Number: Methane, ethane, and propane do not have any isomers. Butane has 2 isomers, pentane has 3 isomers, and hexane has 5 isomers. By the time we reach decane (C10H22), there are 75 possible structural isomers.
• Nomenclature: The IUPAC name for methyl propane follows the rule of identifying the longest carbon chain (3 carbons = propane) and the substituent (methyl). Since the methyl can only be on the second carbon to remain a branched isomer, the "2" in 2-methylpropane is often omitted.
• Chemical Reactivity: In terms of chemical reactions, both isomers undergo combustion to produce carbon dioxide and water. They also participate in halogenation under ultraviolet (UV) light.
• Industrial Importance: In the petrochemical industry, isobutane is used in alkylation units to produce high-octane components of gasoline (petrol), which is vital for modern internal combustion engines.

The correct answer is Phloem.

Key Points

• Phloem is a complex permanent tissue in vascular plants that is primarily responsible for the transport of organic nutrients, particularly sucrose (food), from the leaves (source) to other parts of the plant (sinks) such as roots, fruits, and storage organs. Hence, statement B is correct.
• The process of transporting food through the phloem is known as translocation. This process is bidirectional, meaning it can move nutrients both upwards and downwards depending on the plant's nutritional requirements and the stage of its life cycle.
• Phloem consists of four main components: Sieve tube elements, Companion cells, Phloem parenchyma, and Phloem fibers. Among these, only the phloem fibers are dead cells, while the rest are living.
• Xylem is another type of vascular tissue, but its primary function is the transport of water and dissolved minerals from the roots to the rest of the plant. It operates in a unidirectional manner (upwards only). Hence, statement A is incorrect.
• Chloroplasts are specialized organelles found in plant cells where photosynthesis takes place. They contain the green pigment chlorophyll which captures light energy to produce food, but they are not responsible for the transport of that food throughout the plant body. Hence, statement C is incorrect.

Additional Information

• Vascular Bundles: In most plants, the xylem and phloem are found together in structures called vascular bundles. The arrangement of these bundles varies between monocots and dicots and plays a crucial role in the structural integrity of the plant.
• Mechanism of Transport: The movement of food in the phloem is explained by the Pressure Flow Hypothesis (or Mass Flow Hypothesis), proposed by Ernst Munch in 1930. It suggests that high osmotic pressure at the source (leaves) forces the sap toward areas of lower pressure (sinks).
• Sieve Tube Elements: These are long, tube-like structures arranged end-to-end. Interestingly, mature sieve tube elements lack a nucleus, which helps in the efficient flow of nutrients, while their metabolic activities are controlled by adjacent companion cells.
• Xylem Components: The xylem is composed of tracheids, vessels, xylem parenchyma, and xylem fibers. Unlike phloem, most cells in the xylem (vessels and tracheids) are dead at maturity, providing mechanical strength to the plant.
• Global Context: The study of plant physiology and vascular transport is essential for agricultural science and forestry, helping scientists develop crops that are more efficient in nutrient distribution, especially in water-stressed countries or during climate change.

Important Points

• Energy Requirement: Unlike the transport of water in the xylem, which is largely driven by physical forces like transpiration pull and capillary action, the translocation of food in the phloem is an active process that requires ATP (energy).
• Composition of Phloem Sap: The sap found in the phloem is not just food; it also carries amino acids, plant hormones, and mRNA, which act as signaling molecules to coordinate growth across different plant organs.
• Phloem Fibers (Bast Fibers): These are economically important and are used in the production of textiles and ropes. Examples include jute, flax, and hemp.
• Source-Sink Relationship: This relationship is dynamic. For instance, in the spring, stored sugar in the roots (sink) may be transported to the developing buds (source of growth) to provide energy for new leaves.

The correct answer is Tendon.

Key Points

• A tendon is a highly organized fibrous connective tissue that serves the primary physiological function of connecting skeletal muscle to bone.
• The main function of a tendon is to transmit the mechanical force of muscle contraction to the bones, which ultimately enables joint movement and maintains posture.
• Tendons are primarily composed of Type I collagen fibers, which are densely packed and arranged in a parallel orientation to provide the tissue with immense tensile strength while remaining flexible.
• At the musculotendinous junction, the muscle fibers transition into the tendon, and at the osteo-tendinous junction, the tendon inserts into the bone, ensuring a secure anchorage for movement.
• Unlike ligaments, which are designed to connect bone to bone to stabilize joints, tendons act as the bridge between the muscular system and the skeletal framework.

Additional Information

• Ligaments:
• Ligaments are tough bands of connective tissue that connect one bone to another bone.
• Their primary role is to provide joint stability and prevent dislocation by limiting abnormal or excessive movement.
• An injury to a ligament is medically referred to as a sprain.
• Cartilage:
• Cartilage is a flexible, non-vascular type of connective tissue that is found in areas such as the joints, rib cage, ear, and nose.
• It provides a smooth surface for articulation at the ends of bones, reducing friction during movement and acting as a shock absorber.
• In the human embryo, much of the skeleton is initially formed as cartilage before undergoing ossification into bone.
• Interstitial Fluid:
• This is a solution that bathes and surrounds the tissue cells of multicellular animals.
• It is a major component of extracellular fluid and acts as a medium for the diffusion of oxygen, nutrients, and waste products between the blood capillaries and the cells.

Important Points

• Tendonitis: This is a clinical condition involving the inflammation of a tendon, usually resulting from repetitive strain, overuse, or age-related degeneration.
• Achilles Tendon: Located at the back of the lower leg, it is the thickest and strongest tendon in the human body, connecting the gastrocnemius and soleus muscles to the calcaneus (heel bone).
• Fibroblasts (Tenocytes): These are the specialized biological cells found within tendons that are responsible for the synthesis and maintenance of the extracellular matrix and collagen fibers.
• Strain vs Sprain: It is important to distinguish that a strain involves an injury to a muscle or tendon, whereas a sprain involves the stretching or tearing of a ligament.
• Blood Supply: Tendons generally have a limited blood supply compared to muscles, which is why tendon injuries often take a longer duration to heal.

The correct answer is Gold - Ag.

Key Points

• Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal with properties that are intermediate between the elements sulfur and tellurium. Hence, Statement A is correctly matched.
• Gold is represented by the chemical symbol Au, which is derived from the Latin word Aurum (meaning shining dawn). The symbol Ag provided in the option actually belongs to Silver, which comes from the Latin word Argentum. Hence, Statement B is incorrectly matched.
• Tin is a post-transition metal in group 14 of the periodic table, represented by the symbol Sn. This symbol originates from its Latin name Stannum, and the element carries the atomic number 50. Hence, Statement C is correctly matched.
• Antimony is a lustrous gray metalloid found in nature mainly as the sulfide mineral stibnite. Its symbol is Sb, which is derived from its Latin name Stibium, and it has the atomic number 51. Hence, Statement D is correctly matched.

Additional Information

• Gold (Au): This element is highly prized for its malleability, ductility, and resistance to most acids. It has the atomic number 79 and is located in group 11 and period 6 of the periodic table. It is extensively used in jewelry, coinage, and high-end electronics due to its excellent electrical conductivity and non-corrosive nature.
• Silver (Ag): With the atomic number 47, silver possesses the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. It is used in solar panels, photography, mirrors, and silverware. Like gold, it is also a precious metal found in group 11.
• Latin Roots of Symbols: Many elements in the periodic table have symbols based on their classical names rather than their modern English names. Examples include Iron (Fe) from Ferrum, Copper (Cu) from Cuprum, Potassium (K) from Kalium, Sodium (Na) from Natrium, and Lead (Pb) from Plumbum.
• The Periodic Table: Originally formulated by Dmitri Mendeleev in 1869, the modern periodic table arranges 118 elements based on their atomic number. The International Union of Pure and Applied Chemistry (IUPAC) is the global body that maintains and standardizes the nomenclature and symbols of these elements to ensure scientific consistency across all countries.

Important Points

• Metalloids vs. Non-Metals: Elements like Antimony (Sb) are classified as metalloids because they exhibit properties of both metals and non-metals, while Selenium (Se) is typically categorized as a non-metal, often used in glassmaking and photocells.
• Chemical Symbols: A chemical symbol is a notation of one or two letters representing a chemical element. The first letter is always capitalized, while the second letter (if present) is always lowercase. This standardization was proposed by Jöns Jacob Berzelius in the early 19th century.

The correct answer is Aluminium.

Key Points

• Aluminium is the most abundant metal found in the Earth's crust, making up approximately 8.1% of the crust's total weight.
• Despite its abundance, it does not occur in its pure elemental form in nature due to its high chemical reactivity; instead, it is found in combined forms within various minerals and rocks, most notably Bauxite.
• In the hierarchy of all elements in the crust, Aluminium ranks third, following Oxygen (the most abundant element at 46.6%) and Silicon (the second most abundant at 27.7%). Since Oxygen is a non-metal and Silicon is a metalloid, Aluminium holds the top spot for metals.
• It is characterized by its low density, high thermal conductivity, and remarkable corrosion resistance, which makes it indispensable in industries such as aerospace, transportation, and packaging.
• The extraction of this metal from its ore, Bauxite, is primarily done through the Bayer process to produce alumina and the Hall-Héroult process for electrolytic reduction.

Additional Information

• Iron (Option A):
• Iron is the second most abundant metal in the Earth's crust, constituting about 5.0% of its mass.
• While it ranks behind Aluminium in the crust, Iron is believed to be the most abundant element by mass for the Earth as a whole, as it forms a significant portion of the Earth's inner and outer core.
• It is a transition metal widely used in the production of steel and is vital for biological functions as a component of hemoglobin.
• Calcium (Option C):
• Calcium is the third most abundant metal in the crust, accounting for roughly 3.6% of the mass.
• It is highly reactive and found in minerals like Calcite, Gypsum, and Fluorite.
• It is an essential alkaline earth metal used extensively in the cement industry and is a major constituent of bones and teeth in animals.
• Sodium (Option D):
• Sodium is the fourth most abundant metal, making up approximately 2.8% of the Earth's crust.
• As an alkali metal, it is extremely reactive and is never found free in nature; its most common source is Halite (rock salt or Sodium Chloride).
• It is crucial for maintaining electrolyte balance and nerve impulse transmission in humans.

Important Points

• The composition of the Earth's crust is dominated by eight elements: Oxygen, Silicon, Aluminium, Iron, Calcium, Sodium, Potassium (2.6%), and Magnesium (2.1%). Together, these account for over 98% of the total crustal mass.
• The distinction between elements and metals is vital; while Oxygen is the most abundant element, it is not a metal. Aluminium is specifically the most abundant metal.
• The Continental Crust (often referred to as Sial due to its richness in Silica and Aluminium) is generally thicker than the Oceanic Crust (referred to as Sima, rich in Silica and Magnesium).
• The Mohorovičić discontinuity marks the boundary between the crust and the Mantle.

The correct answer is Gene.

Key Points

• A Gene is the fundamental physical and functional unit of heredity. In living organisms, it acts as the primary vehicle for the transmission of traits from one generation to the next.
• Genes are composed of DNA (Deoxyribonucleic acid). They provide the necessary instructions for the synthesis of proteins, which are the building blocks of the body and perform most life functions.
• In humans, genes vary significantly in size, ranging from a few hundred DNA bases to more than 2 million bases. The specific sequence of these bases determines the genetic information carried by the gene.
• Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number (less than 1% of the total) are slightly different between individuals, contributing to unique physical features.
• Genes are located at specific positions called loci (singular: locus) on chromosomes. They control various hereditary characteristics, such as eye color, blood type, and height.

Additional Information

• Nucleus:
• The nucleus is a membrane-bound organelle found in eukaryotic cells that houses the cell's main genetic material.
• It serves as the control center of the cell, regulating gene expression and mediating the replication of DNA during the cell cycle.
• While the nucleus contains genes, it is the structural housing rather than the individual unit of inheritance itself.
• Sperms and Eggs (Gametes):
• Sperms are the male reproductive cells, while Eggs (Ova) are the female reproductive cells.
• These are haploid cells, meaning they contain only one set of chromosomes (23 chromosomes in humans), which is half the number found in regular body cells.
• During fertilization, the sperm and egg fuse to form a zygote, combining the genetic material (genes) from both parents to create a new organism.
• DNA and Chromosomes:
• DNA is the molecule that carries genetic instructions. It is organized into long structures called chromosomes.
• In the nucleus of each cell, the DNA molecule is packaged into thread-like structures. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Important Points

• The term "Gene" was introduced by the Danish botanist Wilhelm Johannsen in the year 1909 to describe the units of hereditary transmission.
• Alleles: These are different versions of the same gene. For instance, the gene for hair texture may have one allele for straight hair and another for curly hair.
• Genome: An organism's complete set of DNA, including all of its genes, is called its genome. The Human Genome Project, completed in 2003, mapped the entire human genetic sequence, identifying approximately 20,000 to 25,000 genes.
• Genotype vs. Phenotype: The genotype refers to the actual genetic makeup of an individual, while the phenotype refers to the observable physical traits or functions (like height or skin color) that result from the expression of those genes.
• Gregor Mendel: Known as the Father of Genetics, he conducted experiments on pea plants in the 19th century and established the fundamental laws of inheritance, though he referred to genes as "factors" at the time.

The correct answer is 1986.

Key Points

• The Environment (Protection) Act was passed by the Parliament of India in the year 1986.
• It was enacted under Article 253 of the Constitution of India, which empowers the Parliament to enact laws to give effect to international agreements.
• The legislation was prompted by the Bhopal Gas Tragedy, which occurred in December 1984, leading the government to realize the need for a comprehensive law to manage environmental hazards.
• The Act received the Presidential assent on 23 May 1986 and officially came into force on 19 November 1986, commemorating the birth anniversary of former Prime Minister Indira Gandhi.
• The main objective of the Act is to provide for the protection and improvement of the environment and to prevent, control, and abate environmental pollution.

Additional Information

• Stockholm Conference (1972): This Act was a direct result of the decisions made at the United Nations Conference on the Human Environment held in Stockholm in June 1972. India participated in this conference and committed to taking appropriate steps for the preservation of the natural environment.
• Definition of Environment: According to Section 2(a) of the Act, "environment" includes water, air, and land and the inter-relationship which exists among and between them and human beings, other living creatures, plants, micro-organisms, and property.
• Umbrella Legislation: The Environment (Protection) Act, 1986 is known as “umbrella legislation” because it provides a framework for the Central Government to coordinate the activities of various central and state authorities established under previous laws like the Water Act (1974) and the Air Act (1981).
• Penalties for Violation: The Act prescribes stringent penalties; any person failing to comply with its provisions can be punished with imprisonment for up to five years or a fine of up to one lakh rupees, or both. If the failure continues, an additional fine of five thousand rupees per day may be imposed.
• Global Context: This Act aligns India with global environmental standards and allows the Central Government to set standards for emission or discharge of environmental pollutants from various sources.

Important Points

• Eco-Sensitive Zones (ESZ): Under the Environment (Protection) Act, 1986, the government has the authority to declare certain areas as Eco-Sensitive Zones to restrict industrial operations and protect fragile ecosystems.
• Environmental Impact Assessment (EIA): The EIA notifications, which require certain development projects to obtain environmental clearance, are issued by the Ministry of Environment, Forest and Climate Change (MoEFCC) using the powers conferred by this Act.
• Coastal Regulation Zone (CRZ): The first CRZ notification was issued in 1991 under this Act to regulate activities along the coastal stretches of India.
• National Green Tribunal (NGT): While this Act provides the legal framework, the NGT Act, 2010 was later established to provide a specialized body for the effective and expeditious disposal of cases relating to environmental protection.

Given:

Total weight of alloy = 480 g

Ratio of Zinc : Copper = 5 : 3

New Ratio of Zinc : Copper = 5 : 4

Formula used:

Weight of Zinc = $\frac{\text{Ratio of Zinc}}{\text{Total Ratio}} \times \text{Total weight}$

Weight of Copper = $\frac{\text{Ratio of Copper}}{\text{Total Ratio}} \times \text{Total weight}$

Calculation:

Weight of Zinc = $\frac{5}{5+3} \times 480 = \frac{5}{8} \times 480$

⇒ Weight of Zinc = 300 g

Weight of Copper = $\frac{3}{5+3} \times 480 = \frac{3}{8} \times 480$

⇒ Weight of Copper = 180 g

Let the additional copper required to make the ratio 5 : 4 be x grams.

New weight of Copper = 180 + x

New Ratio of Zinc : Copper = 5 : 4

⇒ $\frac{\text{Weight of Zinc}}{\text{Weight of Copper}} = \frac{5}{4}$

⇒ $\frac{300}{180 + x} = \frac{5}{4}$

Cross-multiply:

⇒ 4 × 300 = 5 × (180 + x)

⇒ 1200 = 900 + 5x

⇒ 1200 - 900 = 5x

⇒ 300 = 5x

⇒ x = $\frac{300}{5} = 60$

∴ The correct answer is option 2.

Given:

In ΔABCΔABC

, ∠A=92∘∠A=92∘

The bisectors of ∠PBC∠PBC

and ∠QCB∠QCB

intersect at O.

Formula used:

The sum of angles in a triangle = 180°.

Exterior angle property: Exterior angle = Sum of opposite interior angles.

Angle properties of bisectors and intersecting lines.

Calculation:

Since ∠A=92∘∠A=92∘

, the sum of ∠B+∠C∠B+∠C

= 180° - 92° = 88°.

Let ∠B=x∠B=x

and ∠C=y∠C=y

. Thus, x+y=88∘x+y=88∘

.

The exterior angles at B and C are:

Exterior angle at B = 180°−x180°−x

Exterior angle at C = 180°−y180°−y

The bisectors of these exterior angles intersect at O.

By angle bisector properties, ∠BOC=180°−(Exterior angle at B/2+Exterior angle at C/2)∠BOC=180°−(Exterior angle at B/2+Exterior angle at C/2)

.

⇒ ∠BOC=180°−(180°−x2+180°−y2)∠BOC=180°−(180°−x2+180°−y2)

⇒ ∠BOC=180°−(90°−x/2+90°−y/2)∠BOC=180°−(90°−x/2+90°−y/2)

⇒ ∠BOC=180°−(180°−(x+y)/2)∠BOC=180°−(180°−(x+y)/2)

⇒ ∠BOC=(x+y)/2∠BOC=(x+y)/2

⇒ ∠BOC=88°/2∠BOC=88°/2

⇒ ∠BOC=44°∠BOC=44°

∴ The correct answer is option 1.

Given:

The radius of the sphere is increased by 140%.

Formula used:

The volume of a sphere, V = $\frac{4}{3}\pi r^3$

Percentage increase in volume = $\frac{\text{New Volume} - \text{Original Volume}}{\text{Original Volume}} \times 100$

Calculation:

Let the original radius of the sphere be $r$.

New radius = $r + 140\%$ of $r$ = $r + 1.4r = 2.4r$.

Original Volume = $\frac{4}{3}\pi r^3$

New Volume = $\frac{4}{3}\pi (2.4r)^3$

⇒ New Volume = $\frac{4}{3}\pi (13.824r^3)$

⇒ New Volume = $13.824 \times \frac{4}{3}\pi r^3$

Percentage increase in volume:

⇒ $\frac{\text{New Volume} - \text{Original Volume}}{\text{Original Volume}} \times 100$

⇒ $\frac{13.824 - 1}{1} \times 100$

⇒ $(12.824 \times 100)$

⇒ Percentage increase = 1282.4%

∴ The correct answer is option 4.