General Awareness PYQs

The correct answer is Meerut.

Key Points

• The revolution of 1857, also known as the First War of Indian Independence, started from the cantonment of Meerut.
• The revolt began on May 10, 1857, when Indian soldiers in Meerut rebelled against the British officers.
• The immediate cause of the revolt was the introduction of new rifle cartridges rumored to be greased with cow and pig fat, offending both Hindu and Muslim soldiers.
• Meerut was one of the largest military cantonments in India at the time, making it a significant starting point for the uprising.

Additional Information

• Causes of the Revolt
• Political Causes: The annexation policies of the British, such as the Doctrine of Lapse, created widespread resentment among Indian rulers.
• Economic Causes: The heavy taxation and exploitation of Indian farmers, artisans, and the destruction of traditional industries led to economic distress.
• Social and Religious Causes: The British social reforms, which were seen as interference in traditional customs and religious practices, angered many Indians.
• Spread of the Revolt
• After Meerut, the revolt quickly spread to other parts of India, including Delhi, Kanpur, Lucknow, Jhansi, and Gwalior.
• Many Indian rulers and soldiers joined the rebellion, seeing it as an opportunity to regain their lost power and territories.
• Suppression of the Revolt
• The British used superior military force and strategic alliances with some Indian rulers to suppress the revolt.
• By 1858, the British had regained control over most of the rebellious areas, marking the end of the revolt.
• Consequences of the Revolt
• The revolt led to the end of the East India Company's rule in India, and the British Crown took direct control of the Indian administration.
• The British government made several administrative and military reforms to prevent any future rebellions.
• The revolt also marked the beginning of a stronger nationalistic movement in India, leading to the eventual struggle for independence.

The correct answer is Warm blooded.

Key Points

• Mammals and birds are both warm-blooded, meaning they can regulate their body temperature internally.
• This characteristic allows them to maintain a stable body temperature regardless of the external environment.
• Being warm-blooded helps these animals to remain active in a wide range of temperatures.
• Warm-blooded animals have higher metabolic rates compared to cold-blooded animals, which helps in supporting their active lifestyles.

Additional Information

• Viviparity
• Viviparity is the mode of reproduction in which the embryo develops inside the body and is born live.
• Mammals generally exhibit viviparity, but birds do not; birds are oviparous, laying eggs outside their body.
• Pigmented Skin
• Pigmented skin contains pigments that provide color and protection against UV radiation.
• This characteristic can be found in many animals, including mammals and birds, but it is not a defining characteristic of both groups.
• Pneumatic Bones
• Pneumatic bones are lightweight bones that contain air spaces, making them less dense.
• This feature is primarily found in birds and helps them in flight; it is not a common characteristic of mammals.
• Warm Blooded
• Warm-blooded animals, also known as endotherms, can regulate their body temperature through internal mechanisms.
• This trait is a common characteristic of both mammals and birds, allowing them to thrive in various environmental conditions.

The correct answer is Diwan-i-Amir-i-kohi.

Key Points

• Diwan-i-Amir-i-kohi was established by Sultan Muhammad bin Tughlaq to promote agriculture.
• This department was responsible for the development and management of agricultural activities.
• The establishment of Diwan-i-Amir-i-kohi aimed at improving the agricultural productivity of the empire.
• This initiative was part of Muhammad Tughlaq's broader economic policies to strengthen the revenue system and support the agrarian sector.

Additional Information

• Diwan-i-Arz
• Diwan-i-Arz was a military department responsible for the organization and administration of the army.
• It managed recruitment, training, and maintenance of the army.
• Diwan-i-Insha
• Diwan-i-Insha was in charge of the royal correspondence.
• It dealt with the drafting and dispatching of royal edicts and letters.
• Diwan-i-Risalat
• Diwan-i-Risalat was the department of religious affairs and charity.
• It managed the administration of religious endowments (waqf) and provided support to scholars and clerics.

The correct answer is Chromosomes begin to condense.

Key Points

• During the leptotene stage, chromosomes start to condense and become visible under a microscope.
• This stage is the initial phase of prophase I in meiosis, where chromosomes appear as long, thread-like structures.
• The condensation of chromosomes helps in their subsequent alignment and pairing during meiosis.
• Chromosomal condensation is crucial for the accurate segregation of chromosomes into daughter cells.

Additional Information

• Leptotene Stage
• The leptotene stage is the first stage of prophase I in meiosis.
• During this stage, chromosomes start to condense and become visible as thin threads.
• It is followed by the zygotene stage, where homologous chromosomes begin to pair and synapse.
• Meiosis
• Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four genetically distinct daughter cells.
• It consists of two consecutive divisions: meiosis I and meiosis II.
• Meiosis is essential for sexual reproduction and contributes to genetic diversity.
• Chromosomal Synapsis
• Synapsis is the pairing of homologous chromosomes during prophase I of meiosis.
• It occurs during the zygotene stage, following the leptotene stage.
• Synapsis is crucial for the exchange of genetic material between homologous chromosomes through crossing over.

The correct answer is Sitar.

Key Points

• Arvind Parikh is a renowned sitar player from India.
• He is a disciple of Ustad Vilayat Khan, one of the most influential sitar maestros.
• Parikh has performed extensively in India and abroad, contributing significantly to the global recognition of Indian classical music.
• He has been honored with the Padma Bhushan award, one of India's highest civilian awards, for his contributions to the field of music.

Additional Information

• Sitar
• The sitar is a plucked stringed instrument used in Hindustani classical music.
• It has a long neck and a gourd-shaped body, with 18-20 strings including both playing and sympathetic strings.
• Renowned sitar players include Ravi Shankar, Vilayat Khan, and Anoushka Shankar.
• The sitar is known for its deep, resonant sound and is often used to play ragas, which are melodic frameworks for improvisation in Indian classical music.
• Bansuri
• The bansuri is an Indian flute made from a single hollow shaft of bamboo with six or seven finger holes.
• It is traditionally used in Indian classical music and folk music.
• Notable bansuri players include Hariprasad Chaurasia and Pannalal Ghosh.
• Tabla
• The tabla is a pair of twin hand drums from the Indian subcontinent, used in traditional, classical, popular, and religious music.
• It consists of a small right-hand drum called the dayan and a larger left-hand drum called the bayan.
• Famous tabla players include Zakir Hussain and Alla Rakha.
• Sarangi
• The sarangi is a bowed, short-necked string instrument from India, Nepal, and Pakistan.
• It is used in Hindustani classical music and is known for its rich, resonant sound.
• Prominent sarangi players include Ram Narayan and Sabri Khan.

The correct answer is Asha Bhosle.

Key Points

• Asha Bhosle is a renowned playback singer in India, known for her versatile voice and extensive career in the Indian music industry.
• She has been honored with numerous awards and accolades, including the Nightingale of Asia Award in 1987.
• Asha Bhosle is the sister of the legendary playback singer Lata Mangeshkar, and together, they have made significant contributions to Indian music.
• Her career spans over seven decades, during which she has recorded songs for films, albums, and live performances, making her one of the most prolific singers in the world.

Additional Information

• Playback Singing
• Playback singing is a technique in Indian cinema where the singing voice is pre-recorded for use in movies, and the actors lip-sync to the songs on screen.
• This practice allows for professional singers to provide high-quality vocal performances, while actors focus on their acting and on-screen presence.
• Awards in the Music Industry
• Music awards are given to recognize and honor achievements in the music industry, including performances, compositions, and contributions to the field.
• Notable music awards include the Grammy Awards, the Academy Awards (Oscars) for Best Original Song, and national awards like the Filmfare Awards in India.
• Contribution of Asha Bhosle
• Asha Bhosle has sung in multiple languages, including Hindi, Marathi, Bengali, Gujarati, Punjabi, Tamil, Telugu, and many more.
• She is known for her versatility in singing various genres, including pop, classical, ghazals, and folk songs.
• Her collaborations with music directors like R.D. Burman, O.P. Nayyar, and A.R. Rahman have resulted in some of the most iconic songs in Indian cinema.
• The Nightingale of Asia Award
• The Nightingale of Asia Award is an honor given to exceptional singers who have made significant contributions to the music industry in Asia.
• It recognizes the impact and influence of the recipient's work on the music culture of the region.

The correct answer is 2 and 3, respectively.

Key Points

• The balanced chemical equation for the given reaction is: C2H5OH + 3 O2 → 2 CO2 + 3 H2O.
• In this balanced equation, 2 molecules of carbon dioxide (CO2) are produced.
• In this balanced equation, 3 molecules of water (H2O) are produced.
• Balancing a chemical equation involves making sure that the number of each type of atom on the reactant side is equal to the number on the product side.

Additional Information

• Balancing Chemical Equations:
• It is the process of ensuring that the number of atoms for each element is the same on both the reactant and product sides of the equation.
• Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction, so we must balance the equation accordingly.
• Steps to Balance a Chemical Equation:
• Write down the unbalanced equation.
• List the number of atoms of each element present in the reactants and products.
• Use coefficients to balance the elements one at a time.
• Make sure that all coefficients are in the lowest possible ratio.
• Double-check to ensure that the number of atoms for each element is balanced on both sides of the equation.
• Combustion Reactions:
• This type of reaction occurs when a substance combines with oxygen and releases energy in the form of light or heat.
• In the given equation, ethanol (C2H5OH) undergoes combustion in the presence of oxygen to produce carbon dioxide and water.

The correct answer is Nagaland.

Key Points

• Kuki dance is a traditional folk dance performed by the Kuki tribes primarily residing in Nagaland.
• This dance is a form of communal celebration, often performed during festivals and special occasions.
• The dance is characterized by vibrant costumes, energetic movements, and rhythmic drumming.
• Kuki dance reflects the rich cultural heritage and traditions of the Kuki community in Nagaland.

Additional Information

• Nagaland
• Nagaland is a state in the northeastern region of India, known for its diverse indigenous tribes, each with its own unique culture and traditions.
• The state is famous for its traditional festivals and dances, many of which are celebrated with great enthusiasm and community participation.
• The Hornbill Festival, held in December, is one of the most prominent festivals in Nagaland, showcasing the cultural heritage of the various tribes.
• Apart from Kuki dance, other traditional dances of Nagaland include the Naga Warrior Dance, Bamboo Dance, and the Zeliang Dance.
• Kuki Tribes
• The Kuki tribes are one of the many indigenous ethnic groups residing in northeastern India, particularly in the states of Nagaland, Manipur, and Assam.
• They have a rich cultural heritage that includes unique customs, traditional attires, folklore, and dances.
• Kuki tribes traditionally live in close-knit communities, and their social structure is based on clans and kinship.
• Their traditional dances, including the Kuki dance, are an integral part of their cultural identity and are performed during festivals, weddings, and community gatherings.

The correct answer is Muhammad Yunus.

Key Points

• Muhammad Yunus is a Bangladeshi social entrepreneur, banker, economist, and civil society leader.
• He is the founder of the Grameen Bank, which was established in 1983 to provide microloans to the impoverished without requiring collateral.
• Yunus and Grameen Bank were awarded the Nobel Peace Prize in 2006 for their efforts to create economic and social development from below.
• Muhammad Yunus is often referred to as the pioneer of microfinance and microcredit.

Additional Information

• Microfinance
• Microfinance is a category of financial services targeted at individuals and small businesses who lack access to conventional banking and related services.
• It includes microcredit, the provision of small loans to the impoverished to help them engage in productive activities or grow their small businesses.
• Microfinance institutions (MFIs) provide these services to low-income individuals or groups.
• The primary goal of microfinance is to reduce poverty and promote financial inclusion.
• Grameen Bank
• Grameen Bank is a Nobel Peace Prize-winning microfinance organization and community development bank founded in Bangladesh.
• It makes small loans to the impoverished without requiring collateral, based on the idea that the poor have skills that are underutilized.
• The bank is built on the principles of trust and solidarity, and it lends primarily to women.
• As of today, Grameen Bank has inspired similar microfinance institutions around the world.
• Nobel Peace Prize
• The Nobel Peace Prize is one of the five Nobel Prizes established by the will of Alfred Nobel, the inventor of dynamite, in 1895.
• It is awarded annually to individuals or organizations that have made significant contributions to peace.
• The award is presented in Oslo, Norway, and it includes a medal, a diploma, and a monetary grant.
• Muhammad Yunus and Grameen Bank received this honor in 2006 for their efforts in economic and social development through microcredit.
• Social Entrepreneurship
• Social entrepreneurship is the use of startup company techniques to develop, fund, and implement solutions to social, cultural, or environmental issues.
• Social entrepreneurs are individuals who pursue innovative ideas with the potential to solve community-based problems.
• Their goal is to create social value rather than personal or shareholder wealth.
• Muhammad Yunus is regarded as one of the leading figures in the field of social entrepreneurship.

The correct answer is tennis.

Key Points

• Nirupama Sanjeev is one of the first Indian women to win a round at a Grand Slam tournament.
• She achieved this milestone at the 1998 Australian Open.
• Nirupama has represented India in several international tennis competitions including the Fed Cup.
• She has been a significant figure in Indian tennis, inspiring many young athletes to pursue the sport.

Additional Information

• Tennis:
• Tennis is a racket sport that can be played individually against a single opponent or between two teams of two players each.
• The modern game of tennis originated in Birmingham, England, in the late 19^th century as lawn tennis.
• The four Grand Slam tournaments are the most prestigious events in tennis: the Australian Open, the French Open, Wimbledon, and the US Open.
• India has produced several notable tennis players, including Leander Paes, Mahesh Bhupathi, Sania Mirza, and Rohan Bopanna.
• Badminton:
• Badminton is a racquet sport played using racquets to hit a shuttlecock across a net.
• It is commonly played as a casual outdoor activity in a yard or on a beach; formal games are played on a rectangular indoor court.
• India has a rich history in badminton, with players like Prakash Padukone, Pullela Gopichand, Saina Nehwal, and PV Sindhu achieving international success.
• Swimming:
• Swimming is an individual or team racing sport that requires the use of one's entire body to move through water.
• The sport takes place in pools or open water (e.g., in a sea or lake).
• India has been making strides in swimming, with swimmers like Virdhawal Khade and Sajan Prakash gaining recognition.
• Chess:
• Chess is a board game played between two players. It is sometimes called Western or international chess to distinguish it from related games such as xiangqi.
• The current form of the game emerged in Southern Europe during the second half of the 15^th century after evolving from a similar, much older game of Indian origin.
• India has a strong presence in the world of chess, with Viswanathan Anand being a former World Chess Champion and a grandmaster.

The correct answer is Narasimhavarman.

Key Points

• Narasimhavarman I, also known as Narasimhavarman Mahamalla, was one of the most famous Pallava kings, ruling from 630 to 668 AD.
• He is known for successfully defeating the Chalukya king Pulakeshin II and capturing their capital, Vatapi (present-day Badami).
• His victory over the Chalukyas earned him the title "Vatapikonda", meaning the conqueror of Vatapi.
• Narasimhavarman I was also a great patron of art and architecture, and he contributed significantly to the development of the Mahabalipuram monuments, which are now UNESCO World Heritage Sites.

Additional Information

• Pallava Dynasty
• The Pallavas were a powerful South Indian dynasty that ruled from the 3^rd century to the 9^th century AD, with their capital at Kanchipuram.
• They were known for their patronage of arts, architecture, and literature, and they played a significant role in the cultural development of South India.
• Their architectural achievements include the rock-cut temples and monolithic rathas (chariots) at Mahabalipuram.
• Chalukya Dynasty
• The Chalukyas were another influential South Indian dynasty that ruled over large parts of the Deccan region between the 6^th and 12^th centuries.
• Their capital was initially at Vatapi (Badami), and they are known for their contributions to temple architecture, including the rock-cut caves at Badami and the temples at Aihole and Pattadakal.
• The Chalukyas had a long-standing rivalry with the Pallavas, which led to numerous battles between the two dynasties.
• Vatapi (Badami)
• Vatapi, now known as Badami, was the capital of the early Chalukya dynasty in the 6^th century AD.
• It is renowned for its rock-cut cave temples and structural temples, which are fine examples of Chalukya architecture.
• After Narasimhavarman I's conquest, the city briefly fell under Pallava control before being retaken by the Chalukyas.
• Mahabalipuram (Mamallapuram)
• Mahabalipuram, also known as Mamallapuram, is a historic town on the Coromandel Coast, known for its group of sanctuaries carved out of rock in the 7^th and 8^th centuries.
• This site includes the famous Shore Temple, the Pancha Rathas, and the Descent of the Ganges relief.
• It is a UNESCO World Heritage Site and reflects the architectural prowess of the Pallavas during Narasimhavarman's reign.

The correct answer is PV Sindhu.

Key Points

• PV Sindhu is an Indian badminton player and one of the top players in the world.
• She won the Singapore Open 2022, adding another title to her illustrious career.
• Sindhu is known for her powerful smashes and excellent court coverage.
• She has also won medals in prestigious tournaments such as the Olympics and World Championships.

Additional Information

• Badminton Terminologies:
• Smash: A powerful overhead shot that is hit steeply downwards into the opponent's court.
• Drop Shot: A shot that is hit softly and lands just over the net in the opponent's court.
• Rally: A sequence of shots between the players, starting with a serve and ending when the shuttlecock lands on the ground.
• Net Play: Shots that are played close to the net, often involving quick reflexes and precise control.
• Singapore Open:
• The Singapore Open is an annual badminton tournament held in Singapore.
• It is part of the BWF World Tour and attracts top players from around the world.
• The tournament features events in men's singles, women's singles, men's doubles, women's doubles, and mixed doubles.
• Winning the Singapore Open is considered a significant achievement in the sport of badminton.
• PV Sindhu's Achievements:
• PV Sindhu won a silver medal at the 2016 Rio Olympics and a bronze medal at the 2020 Tokyo Olympics.
• She became the World Champion in 2019, winning gold at the BWF World Championships.
• Sindhu has been honored with several awards, including the Padma Bhushan and the Rajiv Gandhi Khel Ratna.
• She continues to be a leading figure in Indian sports and an inspiration to aspiring athletes.

The correct answer is Madhya Pradesh.

Key Points

• The 'Lokrangjan' festival is celebrated in the state of Madhya Pradesh, India.
• This festival is held annually and showcases the rich folk and tribal culture of the state.
• It features various cultural performances, including traditional music, dance, and art forms.
• The festival aims to preserve and promote the diverse cultural heritage of the tribal communities in Madhya Pradesh.

Additional Information

• Folk Culture:
• Folk culture refers to the traditional beliefs, customs, and practices of a community, often passed down orally from generation to generation.
• It includes various art forms, such as music, dance, storytelling, and crafts.
• Folk culture is often closely tied to the daily lives and rituals of the people within the community.
• Tribal Culture:
• Tribal culture encompasses the traditions and way of life of indigenous tribal communities.
• These cultures often include unique languages, rituals, art, and social structures.
• Tribal festivals and ceremonies play a significant role in preserving and celebrating their heritage.
• Madhya Pradesh:
• Madhya Pradesh is a state in central India, known for its rich cultural heritage and historical significance.
• The state is home to numerous tribes, each with its own distinct culture and traditions.
• Madhya Pradesh is also known for its historical monuments, wildlife sanctuaries, and natural beauty.
• Lokrang Festival:
• Lokrang is a cultural festival that celebrates the folk and tribal traditions of Madhya Pradesh.
• The festival features performances by artists from various tribal communities, showcasing their unique art forms.
• It is an important event for promoting cultural exchange and preserving the heritage of indigenous communities.

The correct answer is Directive Principles of State Policy.

Key Points

• The Directive Principles of State Policy are enumerated in Part IV of the Indian Constitution, from Articles 36 to 51.
• These principles are guidelines for the framing of laws by the government.
• They aim to create social and economic conditions under which citizens can lead a good life.
• Although these principles are non-justiciable, meaning they are not enforceable by any court, they are considered fundamental in the governance of the country.

Additional Information

• Fundamental Rights
• These are a set of rights that are guaranteed to all citizens of India by the Constitution.They are mentioned in Part III of the Indian Constitution from Articles 12 to 35.
• These rights are justiciable, meaning they are enforceable by the courts.
• Examples include the right to equality, right to freedom, right against exploitation, right to freedom of religion, cultural and educational rights, and right to constitutional remedies.
• Fundamental Duties
• These are moral obligations that are expected to be followed by all citizens of India.
• They are mentioned in Part IV-A of the Indian Constitution under Article 51A.
• There are 11 Fundamental Duties listed in the Constitution.
• They were added by the 42^nd Amendment Act, 1976, based on the recommendations of the Swaran Singh Committee.
• The Union
• This pertains to the structure and functioning of the Union Government in India.
• It is covered in Part V of the Indian Constitution from Articles 52 to 151.
• It includes provisions related to the President, Vice-President, Council of Ministers, Parliament, and other Union bodies.

The correct answer is Ganga river.

Key Points

• The Gandak river is a significant tributary of the Ganga river.
• It originates in the Himalayas in Nepal and flows through the Indian states of Bihar and Uttar Pradesh before joining the Ganga.
• The river is known as Narayani in its upper reaches in Nepal.
• The Gandak river basin is an important agricultural area in the region, providing water for irrigation and supporting a large population.

Additional Information

• Ganga River
• The Ganga is one of the major rivers of the Indian subcontinent, flowing through the northern plains of India and Bangladesh.
• It is considered sacred in Hinduism and is worshipped as the goddess Ganga.
• The river has a length of about 2,525 kilometers (1,569 miles).
• The Ganga river basin is the most populous basin in the world, supporting hundreds of millions of people who rely on it for their water needs.
• Yamuna River
• The Yamuna is the second-largest tributary river of the Ganga in northern India.
• It originates from the Yamunotri Glacier in the Himalayas and flows through several states including Uttarakhand, Haryana, Uttar Pradesh, and Delhi.
• The river meets the Ganga at the Triveni Sangam in Allahabad (Prayagraj).
• Kaveri River
• The Kaveri is one of the major rivers in southern India, flowing through the states of Karnataka and Tamil Nadu.
• It originates from the Brahmagiri hills in the Western Ghats and flows into the Bay of Bengal.
• The river is crucial for agriculture and irrigation in the regions it flows through.
• Brahmaputra River
• The Brahmaputra is one of the major rivers of the Indian subcontinent, flowing through Tibet, India, and Bangladesh.
• It originates from the Angsi Glacier in Tibet and flows through the Assam valley in India and the Ganges Delta in Bangladesh.
• The river is known for its powerful and unpredictable nature, causing frequent flooding in the regions it flows through.

The correct answer is The USA.

Key Points

• The concept of 'Independence of judiciary' is a fundamental principle of the United States Constitution.
• In the United States, the judiciary is an independent branch of government, separate from the executive and legislative branches.
• This principle ensures that the judiciary can make decisions free from political pressure or influence.
• The Indian Constitution incorporated this principle to ensure a fair and impartial judicial system.

Additional Information

• Independence of Judiciary
• It refers to the concept that the judiciary should be independent from the other branches of government (executive and legislative).
• It ensures that judges are free to make decisions based on law, without external influence or pressure.
• This principle is crucial for maintaining the rule of law and protecting the rights and liberties of individuals.
• Judiciary in the United States
• The U.S. Constitution establishes the judiciary as a separate and co-equal branch of government.
• The judiciary has the power of judicial review, which allows courts to declare laws or executive actions unconstitutional.
• Federal judges are appointed for life, which helps to secure their independence.
• Judiciary in India
• The Indian Constitution adopts the principle of judicial independence to ensure that the judiciary is free from any external control.
• Judges of the Supreme Court and High Courts are appointed by the President of India and can be removed only through a rigorous process of impeachment.
• The judiciary in India has the power of judicial review to ensure that laws and executive actions comply with the Constitution.

The correct answer is Punjab.

Key Points

• Punjab was the most transformed state by the Green Revolution in India, which began in the 1960s.
• The Green Revolution in Punjab led to a significant increase in agricultural productivity, particularly in the production of wheat and rice.
• Punjab's success was largely due to the adoption of high-yield variety (HYV) seeds, increased use of fertilizers, and improved irrigation techniques.
• The economic prosperity of Punjab improved considerably as a result of the Green Revolution, making it one of the wealthiest states in India.

Additional Information

• Green Revolution:
• The Green Revolution refers to a period of agricultural transformation that took place globally, particularly in developing countries, between the 1940s and 1960s.
• It involved the introduction of high-yielding variety (HYV) seeds, chemical fertilizers, pesticides, and advanced irrigation methods.
• The main aim was to increase food production and achieve self-sufficiency in staple crops like wheat and rice.
• Norman Borlaug, an American agronomist, is often credited with starting the Green Revolution, especially in Mexico, India, and other parts of Asia.
• High-Yield Variety (HYV) Seeds:
• HYV seeds are genetically improved seeds that produce higher yields compared to traditional seeds.
• These seeds are designed to be more resistant to diseases, pests, and adverse environmental conditions.
• They played a crucial role in boosting agricultural productivity during the Green Revolution.
• Fertilizers and Pesticides:
• The Green Revolution saw a massive increase in the use of chemical fertilizers and pesticides to enhance crop growth and protect against pests and diseases.
• While these chemicals increased yields, they also had environmental consequences, including soil degradation and water pollution.
• Irrigation Techniques:
• Improved irrigation methods, such as canal irrigation, tube wells, and sprinkler systems, were introduced during the Green Revolution.
• These techniques ensured a consistent water supply, which was essential for the growth of HYV seeds.

The correct answer is option 4.

Key Points

• Hexapoda is matched with Mosquito (i-b).
• Crustacea is matched with Daphnia (ii-a).
• Myriapoda is matched with Julus (iii-d).
• Chelicerata is matched with Limulus (iv-c).

Additional Information

• Hexapoda
• Hexapoda is a subphylum of arthropods that includes insects, which are characterized by having six legs.
• Mosquitoes are a type of insect belonging to the order Diptera within the subphylum Hexapoda.
• Crustacea
• Crustacea is a large subphylum of arthropods, including animals such as crabs, lobsters, and shrimp.
• Daphnia, commonly known as water fleas, belong to the subphylum Crustacea and are small planktonic crustaceans.
• Myriapoda
• Myriapoda is a subphylum of arthropods containing millipedes and centipedes.
• Julus is a genus of millipedes, which are characterized by having two pairs of legs per body segment.
• Chelicerata
• Chelicerata is a subphylum of arthropods that includes spiders, scorpions, and horseshoe crabs.
• Limulus, commonly known as the horseshoe crab, belongs to the subphylum Chelicerata and is known for its hard exoskeleton and long tail spine.

The correct answer is Windward side.

Key Points

• The windward side of a mountain is the side that faces the oncoming wind.
• Moisture-laden winds rise up the windward side, leading to cooling and condensation, which causes precipitation.
• This side receives the most rainfall due to orographic lift, where moist air is forced upward by the terrain.
• The windward side is characterized by lush vegetation and higher humidity compared to the leeward side.

Additional Information

• Leeward side
• The leeward side of a mountain is the side sheltered from the wind.
• As air descends on this side, it warms up and becomes drier, resulting in much less precipitation.
• This phenomenon often creates a rain shadow effect, leading to arid conditions.
• Orographic Lift
• Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain.
• As the air rises, it expands and cools, leading to condensation and precipitation.
• This is a common cause of rainfall on the windward side of mountains.
• Rain Shadow
• A rain shadow is a dry area on the leeward side of a mountainous area.
• Mountains block the passage of rain-producing weather systems, causing the air to lose its moisture on the windward side before reaching the leeward side.
• Rain shadows can significantly affect the climate and vegetation of the region.

The correct answer is the internal diameter of a hollow cylinder and pipes.

Key Points

• Vernier calipers have two types of jaws: external and internal. The internal jaws are specifically designed to measure the internal dimensions of objects.
• The internal jaws are smaller and located at the top of the vernier caliper.
• These jaws are used for measuring the internal diameter of hollow objects like cylinders, pipes, and rings.
• Using the internal jaws ensures that precise internal measurements can be taken, which is crucial in various engineering and manufacturing applications.

Additional Information

• Vernier Caliper:
• A vernier caliper is a precision instrument used to measure dimensions with high accuracy. It consists of a main scale and a sliding vernier scale.
• The vernier scale allows users to read measurements more precisely than a standard ruler.
• It can measure internal and external dimensions, as well as depths, with an accuracy typically up to 0.02 mm or 0.001 inch.
• Vernier calipers are widely used in mechanical engineering, machining, and quality control processes.
• Internal and External Jaws:
• Internal jaws are used to measure the inside dimensions of an object, such as the inner diameter of a tube or cylinder.
• External jaws are used to measure the outside dimensions of an object, such as the thickness or diameter of a rod or sphere.
• Proper use of both jaws is essential for accurate measurements in various applications.
• Depth Gauge:
• The depth gauge is another feature of the vernier caliper used to measure the depth of holes or recesses.
• This is done by extending the depth rod and noting the measurement on the scale.
• Depth measurements are crucial in applications where the depth of a feature must be controlled precisely.