General Awareness PYQs

The correct answer is Girl child survival & education.

Key Points

• The Beti Bachao Beti Padhao (BBBP) scheme was launched on 22 January 2015 by Prime Minister Narendra Modi in Panipat, Haryana.
• The main objective of the scheme is to address the declining Child Sex Ratio (CSR) and promote the survival, protection, and education of the girl child.
• The initiative is a tri-ministerial effort involving the Ministry of Women and Child Development, the Ministry of Health and Family Welfare, and the Ministry of Education (formerly MHRD).
• The scheme focuses on generating awareness and improving the efficiency of welfare services intended for girls across India.
• District-level implementation: The scheme was initially implemented in 100 districts with a low Child Sex Ratio and later expanded to cover all districts in India.

Additional Information

• Child Sex Ratio (CSR): CSR refers to the number of girls per 1,000 boys in the 0-6 age group. A decline in CSR reflects social issues such as gender-based discrimination and female foeticide.
• Key Components of BBBP:
• Advocacy and media campaigns: To create awareness and change societal attitudes towards the girl child.
• Multi-sectoral interventions: In targeted districts to ensure access to education and health services for girls.
• Monitoring: Regular monitoring of CSR and other indicators to evaluate the scheme's impact.
• Sukanya Samriddhi Yojana (SSY): A savings scheme under BBBP that promotes financial security for the girl child by offering attractive interest rates and tax benefits.
• Impact of BBBP: The scheme has led to significant improvements in CSR in several districts, increased enrollment of girls in schools, and enhanced awareness about gender equality.
• Global Perspective: BBBP aligns with the United Nations' Sustainable Development Goals (SDGs), particularly Goal 5 (Gender Equality) and Goal 4 (Quality Education).

The correct answer is Mixing with vinegar to observe fizzing reaction.

Key Points

• Chalk powder, primarily composed of calcium carbonate (CaCO₃), reacts with acids like vinegar (acetic acid) to produce carbon dioxide (CO₂) gas.
• When vinegar is added to adulterated wheat flour containing chalk powder, fizzing or effervescence is observed due to the release of CO₂ gas.
• This simple household method is an effective and quick way to detect the presence of chalk powder in wheat flour.
• The reaction involved is: CaCO₃ + 2CH₃COOH → Ca(CH₃COO)₂ + H₂O + CO₂↑.
• Effervescence or bubbling confirms the presence of calcium carbonate in the adulterated wheat flour.

Additional Information

• Adulteration: It refers to the practice of adding unwanted substances to food items to increase quantity or reduce production costs, often compromising quality and safety.
• Calcium Carbonate: A common compound found in chalk, marble, and limestone. It is harmless in small amounts but is considered an adulterant when added to food products like flour.
• Vinegar: A household acid (acetic acid, CH₃COOH) commonly used in cooking and cleaning, making it a practical tool for such tests.
• Effervescence: The bubbling or fizzing that occurs due to the release of gas during a chemical reaction, such as the reaction of acids with carbonates.
• Food Safety: Regular checks for adulterants in food products are crucial to ensuring health and preventing long-term health risks associated with contaminated food.

The correct answer is Option 2.

Key Points

• Black soils exhibit high moisture-retaining capacity, which is why they often develop deep cracks during dry hot weather.
• They are rich in lime, iron, magnesia, and alumina, but lack sufficient phosphoric content, making them unique in composition.
• These soils are also known as Regur soils and are highly suitable for crops such as cotton.
• The characteristics listed under points 1 and 3 align strongly with the properties of Black soils.
• Point 2 about tea and apple cultivation is more characteristic of soils in cold climates, such as mountain soils, and does not pertain to Black soils.

Additional Information

• Black Soils: They are formed from volcanic rocks and are predominantly found in the Deccan plateau regions of India, including Maharashtra, Madhya Pradesh, Gujarat, and Andhra Pradesh.
• Moisture Retention: Black soils are known for their ability to retain moisture, making them ideal for crops like cotton, which require consistent water availability.
• Cracking Phenomenon: During dry seasons, the soil develops cracks, which helps in aeration and natural tilling of the land.
• Regional Suitability: Black soils are highly suitable for crops like cotton, sugarcane, pulses, and cereals due to their nutrient profile.
• Other Soil Types: Mountain soils, unlike Black soils, are suitable for tea and apple cultivation due to their high organic content and cold climate compatibility.

The correct answer is Statement I is incorrect, Statement II is correct.

Key Points

• Statement I is incorrect: The Industrial Policy Resolution of 1956 aimed at strengthening the public sector, not promoting private sector dominance.
• Statement II is correct: The Industrial Policy Resolution of 1956 categorized industries into three schedules: exclusively government-owned, mixed public-private sector, and private sector.
• The 1956 policy was strongly influenced by the socialist framework, emphasizing the role of the state in industrial development.
• The resolution aimed to reduce income inequalities, promote regional balance, and achieve self-reliance in industrial production.
• It laid the foundation for India's industrial growth by prioritizing heavy industries and infrastructure development under public ownership.

Additional Information

• Industrial Policy Resolution of 1956: This policy was a major shift from the 1948 Industrial Policy, placing significant emphasis on public sector enterprises.
• Three-category classification:
• Category A: Industries exclusively reserved for state ownership and operation (e.g., defense, atomic energy).
• Category B: Industries where both public and private sectors could operate, but with the public sector taking the lead (e.g., machine tools, fertilizers).
• Category C: All other industries left to the private sector but regulated by the state.
• Significance of the 1956 Policy: It was based on the Nehruvian vision of development and aligned with the Directive Principles of State Policy in the Indian Constitution.
• Public Sector Expansion: The policy led to the establishment of major public sector enterprises like BHEL, SAIL, and NTPC.
• Criticism: The policy was criticized for excessive bureaucracy, inefficiency in public sector enterprises, and limited scope for private sector growth.

The correct answer is A counterpart document executed by one of the parties.

Key Points

• Under Chapter V of the Bharatiya Sakshya Adhiniyam, 2023, primary evidence refers to the original document itself, or a counterpart document executed by one of the parties involved in a transaction.
• Primary evidence is defined in Section 62 of the Indian Evidence Act, 1872, and has been adopted in the Bharatiya Sakshya Adhiniyam, 2023, as the most reliable form of evidence.
• It is considered direct evidence that does not require further corroboration or secondary evidence to prove its authenticity.
• The counterpart document executed by one of the parties is treated as primary evidence when it is authenticated and executed by the parties involved.
• Photocopies, summaries, or typed versions are generally classified as secondary evidence unless authenticated under specific provisions.

Additional Information

• Primary Evidence: Original documents or counterparts executed by the parties involved in a transaction.
• Secondary Evidence: Includes copies, summaries, or reproductions of the original document, which require further authentication.
• Indian Evidence Act, 1872: The foundational legal framework for evidence in India, defining primary and secondary evidence under Sections 62 and 63.
• Authentication: The process of verifying the genuineness of a document by confirming its execution by the parties involved.
• Relevance in Legal Proceedings: Primary evidence is considered more reliable and carries greater probative value in courts compared to secondary evidence.
• Bharatiya Sakshya Adhiniyam, 2023: The updated legislation for evidence in India, incorporating modern principles and interpretations of evidence law.

The correct answer is Rajendra Chola I.

Key Points

• Rajendra Chola I, the son of Raja Raja Chola I, ruled the Chola dynasty from 1014 to 1044 CE and expanded its territory significantly.
• He is credited with constructing advanced irrigation systems, including tanks, reservoirs, and canals, to boost agricultural productivity in the Chola Empire.
• The Chola rulers, under Rajendra Chola I, focused on water management and utilized river systems like the Kaveri to create sustainable agricultural practices.
• Rajendra Chola I established the city of Gangaikonda Cholapuram and built extensive infrastructure to support his empire’s agrarian economy.
• His irrigation initiatives were pivotal in transforming the fertile lands of the Tamil region into one of the most prosperous agricultural zones during his reign.

Additional Information

• Chola Dynasty:
• The Chola dynasty was one of the longest-ruling dynasties in Indian history, with its origins tracing back to the 9^th century CE.
• They were renowned for their contributions to art, architecture, administration, and infrastructure development.
• The Cholas built iconic temples such as the Brihadeeswarar Temple in Thanjavur, a UNESCO World Heritage Site.
• Irrigation Systems:
• Ancient Indian rulers prioritized irrigation systems to ensure sustainable agricultural practices and food security.
• Techniques included the use of canals, tanks, and reservoirs for water storage and distribution.
• The Kaveri delta region was a crucial area for irrigation development during the Chola period.
• Gangaikonda Cholapuram:
• Rajendra Chola I established Gangaikonda Cholapuram as the capital of the Chola Empire.
• The city featured advanced urban planning and infrastructure, including temples and irrigation systems.
• It served as a symbol of Chola power and prosperity during his reign.
• Agrarian Economy:
• The Chola dynasty depended heavily on agriculture for economic stability and expansion.
• Efficient irrigation systems allowed the cultivation of crops like rice, which was a staple food for the population.
• The agrarian economy fueled trade and commerce, making the Chola Empire a prominent player in regional and international trade.

The correct answer is Rabindranath Tagore.

Key Points

• Rabindranath Tagore was the first Indian to receive the Nobel Prize in Literature for his collection of poems, Geetanjali, in 1913.
• The Nobel Prize was awarded to Tagore for his "profoundly sensitive, fresh, and beautiful verse," making him the first non-European to receive this honor.
• Geetanjali, also known as "Song Offerings," is a collection of 103 poems originally written in Bengali and later translated into English by Tagore himself.
• Tagore was not only a poet but also a novelist, painter, philosopher, and composer who made significant contributions to Indian and global literature.
• His Nobel Prize brought Indian literature into the global spotlight, establishing Tagore as an international literary figure.

Additional Information

• Rabindranath Tagore:
• Born on 7 May 1861 in Kolkata, Tagore was a polymath who reshaped Bengali literature, music, and art.
• He founded Visva-Bharati University at Santiniketan, which became a center for cultural and educational exchange.
• Geetanjali:
• Originally written in Bengali, Tagore translated it into English, which led to his Nobel Prize recognition.
• The work reflects themes of spirituality, divine love, and human connection.
• The Nobel Prize:
• Established by Alfred Nobel in 1895, it is awarded annually in categories like Physics, Chemistry, Medicine, Literature, Peace, and Economic Sciences.
• Rabindranath Tagore’s Nobel Prize in 1913 was the first for an Asian in the Literature category.
• Tagore's Legacy:
• Tagore composed the national anthems of both India ("Jana Gana Mana") and Bangladesh ("Amar Shonar Bangla").
• He remains a revered figure in Indian and world literature, continuing to inspire generations with his works.

The correct answer is 4) 1 only.

Key Points

• Ramjets operate efficiently at hypersonic speeds (above Mach 5) due to their ability to compress incoming air without moving parts like compressors.
• Ramjets are typically used in applications such as missiles or high-speed aircraft, where sustained high-speed operation is required.
• The operational efficiency of ramjets decreases at lower speeds because they rely on the forward motion of the vehicle to compress air.
• Statement 1 is correct: Ramjets are best suited for speeds ranging from Mach 3 to Mach 6.

Additional Information

• Ramjet: A type of air-breathing jet engine that uses the engine's forward motion to compress incoming air, eliminating the need for a rotary compressor.
• Dual Mode Ramjet (DMRJ): A propulsion system capable of operating in both ramjet and scramjet modes. It works efficiently at supersonic and hypersonic speeds but not at subsonic speeds, making Statement 2 incorrect.
• Hypersonic Speed: Refers to speeds greater than Mach 5 (five times the speed of sound). Hypersonic systems include advanced technologies like scramjets and ramjets.
• Scramjet: A variation of the ramjet engine that operates at hypersonic speeds by allowing supersonic airflow throughout the engine.
• Applications: Ramjets and scramjets are used in advanced military applications, space exploration, and next-generation high-speed travel.

The correct answer is France.

Key Points

• The TRISHNA satellite (Thermal Infrared Imaging Satellite for High-resolution Natural resource Assessment) is being developed jointly by ISRO (Indian Space Research Organisation) and CNES (National Centre for Space Studies), France.
• It aims to provide high-resolution thermal infrared imaging for applications such as water resource management, urban planning, and climate monitoring.
• TRISHNA will operate in the thermal infrared spectrum and is expected to deliver data with unprecedented spatial and temporal resolution.
• The satellite builds upon the collaborative legacy of previous ISRO-CNES partnerships, such as the Megha-Tropiques and SARAL missions.
• This mission highlights the growing India-France space cooperation, which has spanned over five decades, fostering advancements in Earth observation and space technology.

Additional Information

• Thermal Infrared Imaging:
• Thermal imaging detects heat emitted by objects and is widely used for Earth observation, agriculture, and disaster management.
• It helps in understanding land surface temperatures, water body temperatures, and vegetation health.
• ISRO-CNES Collaboration:
• India and France have a long-standing partnership in space programs, beginning with the launch of India’s first satellite, Aryabhata, in 1975.
• Notable joint missions include Megha-Tropiques (climate monitoring) and SARAL (oceanography).
• Importance of TRISHNA:
• The satellite will assist in climate change studies by providing accurate data on Earth’s heat budget and water cycles.
• It will also support sustainable development goals, particularly in agriculture and water management.
• Earth Observation Satellites:
• Earth observation satellites are used to monitor and assess changes in the planet's surface and atmosphere.
• Examples include ISRO’s CARTOSAT and RISAT series, which cater to mapping, disaster management, and defense needs.

The correct answer is 14.63 meters.

Key Points

• The radius of the striking or shooting circle in hockey is 14.63 meters, as per the official rules of the International Hockey Federation (FIH).
• This circle is often referred to as the "D" or the "shooting circle" due to its semicircular shape.
• The striking circle is the area from where players can legally score a goal if the ball is hit within its boundary.
• The measurement is taken from the center of the goal line to the outer edge of the circle.
• This dimension is standardized for all international hockey games to maintain uniformity in play.

Additional Information

• Shooting Circle: The area where players can shoot the ball to score a goal, provided the ball is touched by an attacker inside this zone.
• Penalty Corner: Awarded to the attacking team for a foul committed by the defending team inside the shooting circle.
• Goal Dimensions: The width of the goal in field hockey is 3.66 meters, and its height is 2.14 meters.
• Field Dimensions: A standard field hockey pitch measures 91.4 meters in length and 55 meters in width.
• Field Markings: In addition to the striking circle, the pitch includes 23-meter lines, a centerline, and sidelines for game organization and rule enforcement.

The correct answer is To reduce the force by increasing the time over which momentum changes.

Key Points

• When a cricketer moves his hands backward while catching a fast-moving ball, the time duration of the impact increases. This results in the momentum of the ball changing more gradually.
• According to Newton's Second Law of Motion, force is inversely proportional to the time over which the change in momentum occurs. Increasing the time reduces the force applied on the hands.
• Reducing the force during impact helps in minimizing the risk of injury to the cricketer's hands.
• This technique utilizes the concept of "Impulse," which is the product of force and the time duration of its application.
• The backward movement of hands ensures that the ball's momentum is brought to zero in a controlled manner, enhancing the efficiency and safety of the catch.

Additional Information

• Newton's Laws of Motion:
• Newton's Second Law states that Force (F) = Mass (m) × Acceleration (a). It also relates to momentum as F = Δp/Δt, where Δp is the change in momentum and Δt is the time interval.
• The concept of impulse is derived from this law, where Impulse = Force × Time = Change in Momentum.
• Momentum: Momentum (p) is the product of an object's mass and velocity (p = mv). It is a vector quantity and is conserved in the absence of external forces.
• Impulse: Impulse is the measure of the change in momentum of an object when a force acts over a time interval. It explains the importance of increasing the time of impact to reduce the applied force.
• Safety in Sports: Techniques like moving hands backward while catching are designed to minimize injuries by distributing the force over a longer time, aligning with the principles of physics.
• Real-World Applications: The same principle is applied in car crash safety mechanisms like airbags and crumple zones, which increase the time of impact to reduce force and prevent severe injuries.

The correct answer is Both Assertion (A) and Reason (R) are true, and R is the correct explanation of A.

Key Points

• The Treaty of Paris (1763) marked the end of the Seven Years' War and significantly reduced French influence in India.
• The treaty allowed France to maintain only trading posts in India, such as Pondicherry, Karaikal, Mahe, and Chandernagore.
• It explicitly restricted the French from stationing troops or fortifying their factories in India, thereby limiting their power.
• This agreement ensured British dominance in India and sidelined French ambitions to establish a colonial empire in the region.
• The Reason (R) correctly explains the Assertion (A) as the prohibition on troops and fortifications directly led to the restriction of French presence to mere trading posts.

Additional Information

• Treaty of Paris (1763):
• It ended the global conflict known as the Seven Years' War (1756–1763).
• In the Indian context, it curtailed French political and military activities, favoring British supremacy.
• French Settlements in India: The major French trading posts included Pondicherry, Karaikal, Mahe, Chandernagore, and Yanam.
• Impact on British-French Rivalry: The treaty marked a significant step towards British domination in India, minimizing French interference in Indian affairs.
• Colonial Conflicts in India: The Anglo-French rivalry in India, also known as the Carnatic Wars (1746–1763), was a key factor leading to the treaty's terms.
• Seven Years' War: A global conflict involving major European powers, it had repercussions in their colonial territories, including India.

The correct answer is Parliament.

Key Points

• Under the Indian Constitution, the power to amend the distribution of legislative powers between the Union and State governments lies with the Parliament.
• Such amendments are carried out under Article 368, which provides the procedure for amending the Constitution.
• Any amendment related to the Union-State power distribution requires the approval of both houses of Parliament, followed by ratification by at least half of the state legislatures.
• These amendments are considered "Constitutional Amendments" and typically require a two-thirds majority in both the Lok Sabha and Rajya Sabha.
• The process ensures that any change in the power distribution is conducted democratically and with extensive deliberation.

Additional Information

• Article 368: It provides the detailed procedure for amending the Constitution, including changes to Union-State power distribution.
• Federal Structure: India follows a quasi-federal system where legislative, executive, and financial powers are divided between the Union and State governments under the Seventh Schedule.
• Seventh Schedule: It categorizes subjects into three lists—Union List, State List, and Concurrent List—to delineate the powers of the Union and State governments.
• Concurrent Amendments: Changes affecting both Union and State powers require ratification by at least 50% of state legislatures to ensure cooperation and consensus.
• Judicial Review: The Supreme Court has the power to review Constitutional Amendments to ensure they do not violate the "Basic Structure Doctrine" of the Constitution.

The correct answer is Option 4.

Key Points

• All-India Services, such as the IAS (Indian Administrative Service), IPS (Indian Police Service), and IFoS (Indian Forest Service), are common to both the Union and State governments.
• These services are governed by the All-India Services Act, 1951, ensuring uniformity in administration.
• Officers of All-India Services are recruited centrally by the Union Public Service Commission (UPSC), but their services are allocated to various states.
• While they serve in states, their administrative control and career progression are jointly managed by the Union Government and the respective State Governments.
• The second statement is incorrect because All-India Services are not controlled solely by state governments; they are under dual control.

Additional Information

• All-India Services Act, 1951: This act provides the legal framework for managing All-India Services. It establishes the joint control of Union and States over these services.
• Recruitment Process: The Union Public Service Commission (UPSC) conducts competitive examinations to recruit candidates for All-India Services.
• Dual Control: Officers of All-India Services work in states but are also subject to central government rules regarding promotions, transfers, and disciplinary actions.
• Role in Governance: Officers of All-India Services play a crucial role in implementing policies and maintaining law and order across states while ensuring national integration.
• Examples: IAS officers handle administrative functions, IPS officers manage law enforcement, and IFoS officers oversee forest and environmental management.

The correct answer is To present fiscal policy statements to Parliament.

Key Points

• The Finance Minister is mandated under the Fiscal Responsibility and Budget Management (FRBM) Act, 2003, to present fiscal policy statements to Parliament for ensuring transparency and accountability in fiscal management.
• The key fiscal policy statements include the Medium-Term Fiscal Policy Statement, the Fiscal Policy Strategy Statement, and the Macro-Economic Framework Statement.
• The objective of these statements is to provide a roadmap for fiscal consolidation, ensuring fiscal discipline and long-term economic stability.
• The Finance Minister also reviews compliance with the targets set under the FRBM Act, such as fiscal deficit and revenue deficit, and reports deviations, if any, to Parliament.
• These statements aim to keep fiscal management aligned with the principles of prudence, sustainability, and intergenerational equity.

Additional Information

• Fiscal Responsibility and Budget Management (FRBM) Act:
• It was enacted in 2003 to institutionalize financial discipline and reduce fiscal deficits in India.
• The Act sets limits on the fiscal deficit and public debt of the government, aiming to achieve a balanced budget over time.
• It was amended in 2018 to include a fiscal deficit target of 3% of GDP by March 2021.
• Fiscal Deficit:
• It is the difference between total government expenditure and its total revenue (excluding borrowings).
• High fiscal deficits can lead to inflationary pressures, whereas low deficits ensure fiscal sustainability.
• Revenue Deficit:
• The revenue deficit refers to the excess of the government's revenue expenditure over revenue receipts.
• A high revenue deficit indicates that the government is borrowing to meet its operational expenses.
• **Medium-Term Fiscal Policy

Statement:

**

• It projects three-year rolling targets for key fiscal indicators like revenue deficit, fiscal deficit, and debt levels.
• **Fiscal Policy Strategy

Statement:

**

• It outlines the government's strategy to achieve fiscal objectives and manage public finances.

The correct answer is To reach Afghanistan and Central Asia bypassing Pakistan.

Key Points

• India’s investment in Chabahar Port is strategically aimed at providing a trade route to Afghanistan and Central Asia, bypassing Pakistan.
• The port facilitates India's access to landlocked countries like Afghanistan and enhances connectivity to resource-rich Central Asian nations.
• Chabahar Port plays a crucial role in India's International North-South Transport Corridor (INSTC), which aims to improve connectivity between India, Iran, and Russia.
• It reduces logistical costs and time for trade with Central Asian countries compared to existing routes through Pakistan.
• Chabahar is being developed as a counterbalance to Pakistan's Gwadar Port, which is a key project under China's Belt and Road Initiative.

Additional Information

• Chabahar Port Location: It is located in southeastern Iran, along the Gulf of Oman, and serves as Iran's only oceanic port.
• INSTC: The International North-South Transport Corridor is a 7,200 km long multimodal transportation network connecting India, Iran, and Russia, aimed at reducing transit time and costs.
• Strategic Importance: Chabahar Port enables India to bypass Pakistan for trade with Afghanistan, especially given the strained India-Pakistan relations.
• India-Iran Relations: India has invested heavily in the Chabahar Port and related infrastructure, strengthening its ties with Iran despite geopolitical challenges.
• Geopolitical Context: The port counters China's strategic influence in the region through its investment in Pakistan's Gwadar Port under the China-Pakistan Economic Corridor (CPEC).

The correct answer is 1 and 2 Only.

Key Points

• Gujarat’s medieval architecture displayed a blend of Islamic and local Hindu traditions, integrating features from temple architecture.
• Elements like toranas (arched gateways) and bell motifs, commonly found in Hindu temples, were adapted into mosques and tombs during the medieval period.
• Regional architectural styles in Gujarat reflected a cultural synthesis rather than strict segregation, rejecting the notion of avoiding indigenous decorative influences.
• Gujarat's architecture evolved through the adaptation of local craftsmanship and materials, ensuring a unique regional identity.

Additional Information

• Toranas: These are intricately carved arch-like structures that are often associated with Hindu and Jain temples but were incorporated into Islamic architecture in Gujarat.
• Bell Motifs: Decorative patterns resembling bells, commonly found in temple designs, were adapted in Islamic structures to harmonize aesthetics.
• Cultural Synthesis: The coexistence of Hindu, Jain, and Islamic architectural elements in Gujarat showcases the region's pluralistic cultural history.
• : Local architectural practices included the use of sandstone and marble, along with intricate carvings, reflecting the craftsmanship of Gujarat.
• Solanki Style: This refers to the architectural style during the Solanki dynasty, which influenced later medieval structures in Gujarat.

The correct answer is the natural imbalance between food supply and population growth leads to unavoidable hardships unless population is controlled.

Key Points

• Thomas Malthus proposed that population growth tends to outstrip food supply, leading to resource scarcity and societal hardships.
• He argued that population grows exponentially while food production grows only arithmetically, creating a natural imbalance.
• Malthus emphasized the importance of controlling population growth through preventive measures like moral restraint.
• Without such checks, he believed that natural calamities like famine, disease, and war would serve as corrective forces to reduce population size.
• Malthus' theory underscores the critical need for sustainable population management to avoid societal collapse.

Additional Information

• Malthusian Theory: Proposed in 1798 in his book "An Essay on the Principle of Population," Malthus suggested that unchecked population growth leads to poverty and social unrest.
• Exponential vs Arithmetic Growth: Population grows exponentially (doubling over time), while food supply grows arithmetically (linear increase), creating an imbalance.
• Preventive Checks: Measures like delayed marriage, celibacy, and family planning to control population growth.
• Positive Checks: Natural disasters, famine, disease, and conflict that reduce population when preventive measures are ineffective.
• Criticism: Advances in agricultural technology and economic development have challenged Malthus' predictions, making them less applicable in modern contexts.

The correct answer is Both statements 1 and 2 are correct.

Key Points

• Statement 1 is correct: The temperature in the troposphere decreases at an approximate rate of 6.5ºC per kilometer, which is equivalent to 1ºC for every 165 meters of altitude. This phenomenon is called the environmental lapse rate.
• Statement 2 is correct: In the mesosphere, the temperature decreases with altitude, reaching around -100ºC near its upper boundary at approximately 80 kilometers above the Earth's surface.
• The troposphere is the lowest layer of Earth's atmosphere, where weather phenomena occur and temperature decreases due to reduced air density and pressure.
• The mesosphere is the middle layer of the atmosphere, characterized by decreasing temperatures and is considered the coldest layer of Earth's atmosphere.

Additional Information

• Troposphere:
• The troposphere extends up to about 8-15 kilometers above the Earth's surface, depending on the geographical location (higher at the equator).
• It contains approximately 75% of the atmosphere's mass and nearly all the water vapor.
• Temperature decreases as altitude increases due to the adiabatic cooling of rising air.
• Mesosphere:
• The mesosphere lies above the stratosphere and extends from approximately 50 to 80 kilometers above the Earth's surface.
• It is known for the presence of noctilucent clouds and meteors that burn up due to atmospheric friction.
• Temperatures in the mesosphere drop significantly, reaching as low as -100ºC due to low air density.
• Environmental Lapse Rate:
• This refers to the rate at which air temperature decreases with altitude in the troposphere, averaging 6.5ºC per kilometer.
• It varies based on local weather conditions, humidity, and geographical factors.
• Atmospheric Layers:
• Earth's atmosphere is divided into five layers: Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere.
• Each layer has distinct temperature and pressure profiles.

The correct answer is Both Assertion (A) and Reason (R) are true, and R is the correct explanation of A..

Key Points

• During the 18^th century, the British economy experienced rapid capital accumulation, leading to the Industrial Revolution.
• This capital was reinvested primarily in industrial development, paving the way for advancements in machinery, production techniques, and infrastructure.
• The assertion is supported by the fact that merchants and industrialists controlled the majority of capital, shifting economic power from the feudal aristocracy to the emerging capitalist class.
• Merchants and industrialists prioritized reinvestment in industries such as textiles, iron production, and transportation, which were critical for economic growth.
• The shift from feudal to industrial economic structures marked a significant turning point in British economic history, enabling sustained industrialization.

Additional Information

• Industrial Revolution: A period of significant industrial growth in the late 18^th and early 19^th centuries, marked by advancements in technology, manufacturing, and economic structures.
• Capital Accumulation: The process of amassing wealth or financial resources that can be reinvested into productive activities, such as industrial development.
• Role of Merchants and Industrialists: Merchants and industrialists played a crucial role by channeling capital into industries rather than land-based feudal systems, driving innovation and expansion.
• Decline of Feudal Aristocracy: The economic influence of feudal lords diminished as industrial capitalism gained prominence, reshaping societal hierarchies.
• Textile Industry: One of the earliest and most significant industries to benefit from reinvested capital, leading to innovations such as the spinning jenny and power loom.