UPSC Current Affairs Quiz : 27 September 2025

The Current Affairs Quiz is a daily quiz based on the DAILY CURRENT AFFAIRS AND PIB SUMMARY from the previous day, as posted on our website. It covers all relevant news sources and is designed to test your knowledge of current events. Solving these questions will help you retain both concepts and facts relevant to the UPSC IAS civil services exam.

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• Question 1 of 10 1. Question 1 points Which of the following statements best describes the primary strategic significance of the MiG-21 for the Indian Air Force (IAF)? (a) It was the first aircraft to incorporate stealth technology in the IAF's fleet. (b) It served as the backbone of the IAF for over six decades, training generations of pilots and symbolizing Indo-Soviet defence cooperation. (c) Its delta-wing design made it exceptionally agile in dogfights, outclassing all its contemporaries in turning combat. (d) It was primarily a ground-attack aircraft, with limited capabilities as an interceptor. Correct Solution: B The most accurate description of the MiG-21’s significance is its role as a long-serving, foundational aircraft for the IAF. It was inducted in 1963 as the IAF’s first supersonic jet and remained in service for six decades, a testament to its durability and adaptability. During this period, it became the primary platform for training numerous fighter pilots, earning it the reputation of a “flying school.” Furthermore, its procurement and sustained use highlighted the strong defence partnership between India and the Soviet Union during the Cold War era. While it was a capable interceptor with a top speed of Mach 2, its delta-wing design gave it a rapid climb rate but limited its effectiveness in turning combat. It was not a stealth aircraft, nor was it solely a ground-attack platform. Incorrect Solution: B The most accurate description of the MiG-21’s significance is its role as a long-serving, foundational aircraft for the IAF. It was inducted in 1963 as the IAF’s first supersonic jet and remained in service for six decades, a testament to its durability and adaptability. During this period, it became the primary platform for training numerous fighter pilots, earning it the reputation of a “flying school.” Furthermore, its procurement and sustained use highlighted the strong defence partnership between India and the Soviet Union during the Cold War era. While it was a capable interceptor with a top speed of Mach 2, its delta-wing design gave it a rapid climb rate but limited its effectiveness in turning combat. It was not a stealth aircraft, nor was it solely a ground-attack platform.

#### 1. Question

Which of the following statements best describes the primary strategic significance of the MiG-21 for the Indian Air Force (IAF)?

• (a) It was the first aircraft to incorporate stealth technology in the IAF's fleet.

• (b) It served as the backbone of the IAF for over six decades, training generations of pilots and symbolizing Indo-Soviet defence cooperation.

• (c) Its delta-wing design made it exceptionally agile in dogfights, outclassing all its contemporaries in turning combat.

• (d) It was primarily a ground-attack aircraft, with limited capabilities as an interceptor.

Solution: B

• The most accurate description of the MiG-21’s significance is its role as a long-serving, foundational aircraft for the IAF. It was inducted in 1963 as the IAF’s first supersonic jet and remained in service for six decades, a testament to its durability and adaptability. During this period, it became the primary platform for training numerous fighter pilots, earning it the reputation of a “flying school.”

• Furthermore, its procurement and sustained use highlighted the strong defence partnership between India and the Soviet Union during the Cold War era. While it was a capable interceptor with a top speed of Mach 2, its delta-wing design gave it a rapid climb rate but limited its effectiveness in turning combat. It was not a stealth aircraft, nor was it solely a ground-attack platform.

Solution: B

• Question 2 of 10 2. Question 1 points Consider the following statements regarding Central American Integration System (SICA). Statement-I: The Central American Integration System (SICA) is primarily a military alliance aimed at ensuring collective security in the region. Statement-II: India’s engagement with SICA is focused on South-South cooperation, leveraging its expertise in areas like IT, renewable energy, and digital payments. Which one of the following is correct in respect of the above statements? (a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I (b) Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I (c) Statement-I is correct but Statement-II is incorrect (d) Statement-I is incorrect but Statement-II is correct Correct Solution: D Statement-I is incorrect. SICA is an institutional framework for regional integration in Central America, focusing on achieving peace, liberty, democracy, and development through economic and political cooperation. Its aims are not military but are centered on creating a Customs Union, promoting human rights, and developing regional infrastructure. Statement-II is correct. India’s partnership with SICA is a key component of its South-South cooperation India offers its developmental experience and expertise to address shared challenges like poverty and climate change. The engagement provides significant economic opportunities for Indian industries in sectors such as agriculture, pharmaceuticals, IT, renewable energy, and digital payment systems like the UPI model, reflecting a partnership based on mutual growth and knowledge sharing. Incorrect Solution: D Statement-I is incorrect. SICA is an institutional framework for regional integration in Central America, focusing on achieving peace, liberty, democracy, and development through economic and political cooperation. Its aims are not military but are centered on creating a Customs Union, promoting human rights, and developing regional infrastructure. Statement-II is correct. India’s partnership with SICA is a key component of its South-South cooperation India offers its developmental experience and expertise to address shared challenges like poverty and climate change. The engagement provides significant economic opportunities for Indian industries in sectors such as agriculture, pharmaceuticals, IT, renewable energy, and digital payment systems like the UPI model, reflecting a partnership based on mutual growth and knowledge sharing.

#### 2. Question

Consider the following statements regarding Central American Integration System (SICA).

Statement-I: The Central American Integration System (SICA) is primarily a military alliance aimed at ensuring collective security in the region.

Statement-II: India’s engagement with SICA is focused on South-South cooperation, leveraging its expertise in areas like IT, renewable energy, and digital payments.

Which one of the following is correct in respect of the above statements?

• (a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I

• (b) Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I

• (c) Statement-I is correct but Statement-II is incorrect

• (d) Statement-I is incorrect but Statement-II is correct

Solution: D

• Statement-I is incorrect. SICA is an institutional framework for regional integration in Central America, focusing on achieving peace, liberty, democracy, and development through economic and political cooperation. Its aims are not military but are centered on creating a Customs Union, promoting human rights, and developing regional infrastructure.

• Statement-II is correct. India’s partnership with SICA is a key component of its South-South cooperation India offers its developmental experience and expertise to address shared challenges like poverty and climate change. The engagement provides significant economic opportunities for Indian industries in sectors such as agriculture, pharmaceuticals, IT, renewable energy, and digital payment systems like the UPI model, reflecting a partnership based on mutual growth and knowledge sharing.

Solution: D

• Question 3 of 10 3. Question 1 points Consider the following statements regarding Algorithmic Trading: It relies on human intervention at the moment of trade execution to prevent errors. The use of backtesting allows for the evaluation of a trading strategy’s viability using historical data. SEBI regulations in India discourage the use of all algorithmic trading to protect retail investors. How many of the above statements are incorrect? (a) Only one (b) Only two (c) All three (d) None Correct Solution: B Statement 1 is Incorrect: Algorithmic trading is characterized by its automation, with computer programs executing trades automatically based on predefined rules with zero human intervention at the point of execution. Statement 2 is Correct: Backtesting is a key feature of algorithmic trading, where strategies are tested on historical market data to assess their potential profitability and risk before being deployed in a live market. Statement 3 is Incorrect: SEBI has recognized and regulated algorithmic trading since 2008. The regulations aim to manage risks by requiring exchange approval for strategies, ensuring brokers have risk controls, and discouraging unauthorized “black-box” algos, not to discourage its use altogether. Incorrect Solution: B Statement 1 is Incorrect: Algorithmic trading is characterized by its automation, with computer programs executing trades automatically based on predefined rules with zero human intervention at the point of execution. Statement 2 is Correct: Backtesting is a key feature of algorithmic trading, where strategies are tested on historical market data to assess their potential profitability and risk before being deployed in a live market. Statement 3 is Incorrect: SEBI has recognized and regulated algorithmic trading since 2008. The regulations aim to manage risks by requiring exchange approval for strategies, ensuring brokers have risk controls, and discouraging unauthorized “black-box” algos, not to discourage its use altogether.

#### 3. Question

Consider the following statements regarding Algorithmic Trading:

• It relies on human intervention at the moment of trade execution to prevent errors.

• The use of backtesting allows for the evaluation of a trading strategy’s viability using historical data.

• SEBI regulations in India discourage the use of all algorithmic trading to protect retail investors.

How many of the above statements are incorrect?

• (a) Only one

• (b) Only two

• (c) All three

Solution: B

• Statement 1 is Incorrect: Algorithmic trading is characterized by its automation, with computer programs executing trades automatically based on predefined rules with zero human intervention at the point of execution.

• Statement 2 is Correct: Backtesting is a key feature of algorithmic trading, where strategies are tested on historical market data to assess their potential profitability and risk before being deployed in a live market.

• Statement 3 is Incorrect: SEBI has recognized and regulated algorithmic trading since 2008. The regulations aim to manage risks by requiring exchange approval for strategies, ensuring brokers have risk controls, and discouraging unauthorized “black-box” algos, not to discourage its use altogether.

Solution: B

• Question 4 of 10 4. Question 1 points With reference to the World Para Athletics Championships, consider the following statements: The event is organized annually by the International Paralympic Committee. The 2025 Championships in New Delhi mark the first time the event is being held in Asia. The origins of para-athletics can be traced back to the Stoke Mandeville Games, which were initiated for World War II veterans. How many of the above statements are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: A Statement 1 is incorrect. The World Para Athletics Championships are organized biennially (every two years), not annually. Statement 2 is incorrect. While the 2025 event in New Delhi is a significant milestone as India’s first time hosting, other Asian cities have hosted it before. For instance, Kobe, Japan hosted the championships in 2024 and Dubai, UAE hosted in 2019. Statement 3 is correct. The roots of the Paralympic movement and para-athletics are in the Stoke Mandeville Games, first organized in 1948 by Sir Ludwig Guttmann for British World War II veterans with spinal cord injuries. This initiative evolved into the modern Paralympic Games, where para-athletics is a core sport. The first official World Para Athletics Championships were held in Berlin in 1994. Incorrect Solution: A Statement 1 is incorrect. The World Para Athletics Championships are organized biennially (every two years), not annually. Statement 2 is incorrect. While the 2025 event in New Delhi is a significant milestone as India’s first time hosting, other Asian cities have hosted it before. For instance, Kobe, Japan hosted the championships in 2024 and Dubai, UAE hosted in 2019. Statement 3 is correct. The roots of the Paralympic movement and para-athletics are in the Stoke Mandeville Games, first organized in 1948 by Sir Ludwig Guttmann for British World War II veterans with spinal cord injuries. This initiative evolved into the modern Paralympic Games, where para-athletics is a core sport. The first official World Para Athletics Championships were held in Berlin in 1994.

#### 4. Question

With reference to the World Para Athletics Championships, consider the following statements:

• The event is organized annually by the International Paralympic Committee.

• The 2025 Championships in New Delhi mark the first time the event is being held in Asia.

• The origins of para-athletics can be traced back to the Stoke Mandeville Games, which were initiated for World War II veterans.

How many of the above statements are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: A

• Statement 1 is incorrect. The World Para Athletics Championships are organized biennially (every two years), not annually.

• Statement 2 is incorrect. While the 2025 event in New Delhi is a significant milestone as India’s first time hosting, other Asian cities have hosted it before. For instance, Kobe, Japan hosted the championships in 2024 and Dubai, UAE hosted in 2019.

Statement 3 is correct. The roots of the Paralympic movement and para-athletics are in the Stoke Mandeville Games, first organized in 1948 by Sir Ludwig Guttmann for British World War II veterans with spinal cord injuries. This initiative evolved into the modern Paralympic Games, where para-athletics is a core sport. The first official World Para Athletics Championships were held in Berlin in 1994.

Solution: A

• Statement 1 is incorrect. The World Para Athletics Championships are organized biennially (every two years), not annually.

• Question 5 of 10 5. Question 1 points Match the following lists: List I (Biofuel Generation) List II (Primary Feedstock) A. 1G Ethanol 1. Algae and municipal solid waste B. 2G Ethanol 2. Sugarcane juice and maize C. 3G Biofuels 3. Agricultural residues like rice straw and bagasse D. 4G Biofuels 4. Genetically engineered crops to capture more CO2 Select the correct answer using the code given below: (a) A-3, B-4, C-1, D-2 (b) A-3, B-1, C-4, D-2 (c) A-2, B-1, C-3, D-4 (d) A-2, B-3, C-1, D-4 Correct Solution: D 1G (First-Generation) Ethanol is produced from edible crops. The most common feedstocks are sugarcane juice, maize (corn), and other starches or sugars. Therefore, A matches with 2. 2G (Second-Generation) Ethanol is produced from non-food lignocellulosic biomass. This includes agricultural residues like rice straw, wheat straw, and bagasse (sugarcane residue). Therefore, B matches with 3. 3G (Third-Generation) Biofuels are derived from microorganisms. The primary feedstock is algae, which can be cultivated on land and in water not suitable for conventional agriculture. Therefore, C matches with 1. 4G (Fourth-Generation) Biofuels represent a more advanced stage, focusing on creating sustainable energy without compromising food security. This involves using genetically engineered crops designed to capture larger amounts of CO2 and storing more energy, which is then converted into fuel. Therefore, D matches with 4. Incorrect Solution: D 1G (First-Generation) Ethanol is produced from edible crops. The most common feedstocks are sugarcane juice, maize (corn), and other starches or sugars. Therefore, A matches with 2. 2G (Second-Generation) Ethanol is produced from non-food lignocellulosic biomass. This includes agricultural residues like rice straw, wheat straw, and bagasse (sugarcane residue). Therefore, B matches with 3. 3G (Third-Generation) Biofuels are derived from microorganisms. The primary feedstock is algae, which can be cultivated on land and in water not suitable for conventional agriculture. Therefore, C matches with 1. 4G (Fourth-Generation) Biofuels represent a more advanced stage, focusing on creating sustainable energy without compromising food security. This involves using genetically engineered crops designed to capture larger amounts of CO2 and storing more energy, which is then converted into fuel. Therefore, D matches with 4.

#### 5. Question

Match the following lists:

List I (Biofuel Generation) | List II (Primary Feedstock)

A. 1G Ethanol | 1. Algae and municipal solid waste

B. 2G Ethanol | 2. Sugarcane juice and maize

C. 3G Biofuels | 3. Agricultural residues like rice straw and bagasse

D. 4G Biofuels | 4. Genetically engineered crops to capture more CO2

Select the correct answer using the code given below:

• (a) A-3, B-4, C-1, D-2

• (b) A-3, B-1, C-4, D-2

• (c) A-2, B-1, C-3, D-4

• (d) A-2, B-3, C-1, D-4

Solution: D

• 1G (First-Generation) Ethanol is produced from edible crops. The most common feedstocks are sugarcane juice, maize (corn), and other starches or sugars. Therefore, A matches with 2.

• 2G (Second-Generation) Ethanol is produced from non-food lignocellulosic biomass. This includes agricultural residues like rice straw, wheat straw, and bagasse (sugarcane residue). Therefore, B matches with 3.

• 3G (Third-Generation) Biofuels are derived from microorganisms. The primary feedstock is algae, which can be cultivated on land and in water not suitable for conventional agriculture. Therefore, C matches with 1.

• 4G (Fourth-Generation) Biofuels represent a more advanced stage, focusing on creating sustainable energy without compromising food security. This involves using genetically engineered crops designed to capture larger amounts of CO2 and storing more energy, which is then converted into fuel. Therefore, D matches with 4.

Solution: D

• 1G (First-Generation) Ethanol is produced from edible crops. The most common feedstocks are sugarcane juice, maize (corn), and other starches or sugars. Therefore, A matches with 2.

• Question 6 of 10 6. Question 1 points Consider the following statements regarding the Dugong: It is the only strictly herbivorous marine mammal in existence. In India, its population is exclusively found in the Palk Bay and Gulf of Mannar. It has a very high reproductive rate, which helps its population recover quickly from threats. The Dugong is listed as ‘Critically Endangered’ on the IUCN Red List. How many of the above statements are incorrect? (a) Only one (b) Only two (c) Only three (d) All four Correct Solution: C Statement 1 is correct: The Dugong (Dugong dugon) is the only marine mammal that is a strict herbivore, feeding primarily on seagrass. Statement 2 is incorrect: While major populations are found in Palk Bay and the Gulf of Mannar, they are not exclusive to this region. Dugongs are also found in the Gulf of Kutch and the Andaman & Nicobar Islands. Statement 3 is incorrect: Dugongs have a very low reproductive rate, characterized by long calving intervals and significant parental investment. This slow life cycle makes their populations particularly vulnerable and slow to recover from threats. Statement 4 is incorrect: The Dugong is listed as ‘Vulnerable’ on the IUCN Red List, not ‘Critically Endangered’. This classification still signifies a high risk of extinction in the wild, but ‘Critically Endangered’ is a more severe category. Incorrect Solution: C Statement 1 is correct: The Dugong (Dugong dugon) is the only marine mammal that is a strict herbivore, feeding primarily on seagrass. Statement 2 is incorrect: While major populations are found in Palk Bay and the Gulf of Mannar, they are not exclusive to this region. Dugongs are also found in the Gulf of Kutch and the Andaman & Nicobar Islands. Statement 3 is incorrect: Dugongs have a very low reproductive rate, characterized by long calving intervals and significant parental investment. This slow life cycle makes their populations particularly vulnerable and slow to recover from threats. Statement 4 is incorrect: The Dugong is listed as ‘Vulnerable’ on the IUCN Red List, not ‘Critically Endangered’. This classification still signifies a high risk of extinction in the wild, but ‘Critically Endangered’ is a more severe category.

#### 6. Question

Consider the following statements regarding the Dugong:

• It is the only strictly herbivorous marine mammal in existence.

• In India, its population is exclusively found in the Palk Bay and Gulf of Mannar.

• It has a very high reproductive rate, which helps its population recover quickly from threats.

• The Dugong is listed as ‘Critically Endangered’ on the IUCN Red List.

How many of the above statements are incorrect?

• (a) Only one

• (b) Only two

• (c) Only three

• (d) All four

Solution: C

• Statement 1 is correct: The Dugong (Dugong dugon) is the only marine mammal that is a strict herbivore, feeding primarily on seagrass.

• Statement 2 is incorrect: While major populations are found in Palk Bay and the Gulf of Mannar, they are not exclusive to this region. Dugongs are also found in the Gulf of Kutch and the Andaman & Nicobar Islands.

• Statement 3 is incorrect: Dugongs have a very low reproductive rate, characterized by long calving intervals and significant parental investment. This slow life cycle makes their populations particularly vulnerable and slow to recover from threats.

• Statement 4 is incorrect: The Dugong is listed as ‘Vulnerable’ on the IUCN Red List, not ‘Critically Endangered’. This classification still signifies a high risk of extinction in the wild, but ‘Critically Endangered’ is a more severe category.

Solution: C

• Statement 1 is correct: The Dugong (Dugong dugon) is the only marine mammal that is a strict herbivore, feeding primarily on seagrass.

• Question 7 of 10 7. Question 1 points With respect to 2G Ethanol, which of the following statements is incorrect? (a) Its production process involves the enzymatic hydrolysis of lignocellulosic biomass to release fermentable sugars. (b) It helps in mitigating air pollution by providing a productive use for agricultural residues that are often burned. (c) The primary advantage of 2G ethanol over 1G ethanol is its higher energy density and combustion efficiency. (d) Its production reinforces food security by utilizing non-food-based feedstocks, thereby avoiding the "food vs. fuel" debate. Correct Solution: C The chemical composition of ethanol (C2H5OH) is the same regardless of whether it is produced from 1G or 2G processes. Therefore, its energy density and combustion efficiency do not differ. The primary advantages of 2G ethanol are environmental and strategic, not related to the fuel’s intrinsic properties. Statements (a), (b), and (d) are all correct. The production of 2G ethanol relies on hydrolysis to break down complex plant matter (a). It provides a sustainable solution to stubble burning, a major cause of air pollution (b). By using agricultural waste instead of food crops like sugarcane or maize, it addresses the critical “food vs. fuel” dilemma and enhances food security (d). Incorrect Solution: C The chemical composition of ethanol (C2H5OH) is the same regardless of whether it is produced from 1G or 2G processes. Therefore, its energy density and combustion efficiency do not differ. The primary advantages of 2G ethanol are environmental and strategic, not related to the fuel’s intrinsic properties. Statements (a), (b), and (d) are all correct. The production of 2G ethanol relies on hydrolysis to break down complex plant matter (a). It provides a sustainable solution to stubble burning, a major cause of air pollution (b). By using agricultural waste instead of food crops like sugarcane or maize, it addresses the critical “food vs. fuel” dilemma and enhances food security (d).

#### 7. Question

With respect to 2G Ethanol, which of the following statements is incorrect?

• (a) Its production process involves the enzymatic hydrolysis of lignocellulosic biomass to release fermentable sugars.

• (b) It helps in mitigating air pollution by providing a productive use for agricultural residues that are often burned.

• (c) The primary advantage of 2G ethanol over 1G ethanol is its higher energy density and combustion efficiency.

• (d) Its production reinforces food security by utilizing non-food-based feedstocks, thereby avoiding the "food vs. fuel" debate.

Solution: C

The chemical composition of ethanol (C2H5OH) is the same regardless of whether it is produced from 1G or 2G processes. Therefore, its energy density and combustion efficiency do not differ. The primary advantages of 2G ethanol are environmental and strategic, not related to the fuel’s intrinsic properties. Statements (a), (b), and (d) are all correct. The production of 2G ethanol relies on hydrolysis to break down complex plant matter (a). It provides a sustainable solution to stubble burning, a major cause of air pollution (b). By using agricultural waste instead of food crops like sugarcane or maize, it addresses the critical “food vs. fuel” dilemma and enhances food security (d).

Solution: C

• Question 8 of 10 8. Question 1 points Which of the following is not an objective of the Central American Integration System (SICA)? (a) To establish a unified military command for collective defence against external threats. (b) To progress towards the formation of a regional Customs Union. (c) To consolidate peace, democracy, and the rule of law among its member states. (d) To facilitate collective diplomacy and align members' positions in global forums. Correct Solution: A The primary aims of SICA are centered on political, economic, and social integration, not military alliance. Its foundational purpose is to achieve peace, liberty, democracy, and development. The objectives explicitly include progressing from a Free Trade Area to a Customs Union (b), promoting peace and democracy (c), and coordinating policies to form common global positions (d). The creation of a unified military command is characteristic of a military alliance like NATO, which is fundamentally different from the institutional framework of SICA. Incorrect Solution: A The primary aims of SICA are centered on political, economic, and social integration, not military alliance. Its foundational purpose is to achieve peace, liberty, democracy, and development. The objectives explicitly include progressing from a Free Trade Area to a Customs Union (b), promoting peace and democracy (c), and coordinating policies to form common global positions (d). The creation of a unified military command is characteristic of a military alliance like NATO, which is fundamentally different from the institutional framework of SICA.

#### 8. Question

Which of the following is not an objective of the Central American Integration System (SICA)?

• (a) To establish a unified military command for collective defence against external threats.

• (b) To progress towards the formation of a regional Customs Union.

• (c) To consolidate peace, democracy, and the rule of law among its member states.

• (d) To facilitate collective diplomacy and align members' positions in global forums.

Solution: A

The primary aims of SICA are centered on political, economic, and social integration, not military alliance. Its foundational purpose is to achieve peace, liberty, democracy, and development. The objectives explicitly include progressing from a Free Trade Area to a Customs Union (b), promoting peace and democracy (c), and coordinating policies to form common global positions (d). The creation of a unified military command is characteristic of a military alliance like NATO, which is fundamentally different from the institutional framework of SICA.

Solution: A

• Question 9 of 10 9. Question 1 points Consider the following statements regarding the Dugong Conservation Reserve in Palk Bay: The reserve was established under the provisions of the Environment (Protection) Act, 1986. The IUCN’s recognition of the reserve highlights it as a global model for top-down, state-enforced conservation. The seagrass beds protected by the reserve are exclusively beneficial to Dugongs and have no significant commercial value. How many of the above statements are incorrect? How many of the above statements are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: C Statement 1 is incorrect: The reserve was notified in September 2022 under the Wildlife Protection Act, 1972, not the Environment (Protection) Act, 1986. The WPA, 1972 is the primary legislation for establishing such protected areas for wildlife. Statement 2 is incorrect: The IUCN’s recognition specifically praised the reserve as a model for community-led conservation, not a top-down, state-enforced one. The success of the initiative relies heavily on the active participation and cooperation of local fishing communities. Statement 3 is incorrect: The seagrass beds, in addition to being the primary food for Dugongs, also support commercial fish, crabs, and shrimps, thereby directly benefiting the livelihoods of marginal fishermen in the region. This highlights the interconnectedness of ecological conservation and local economies. Incorrect Solution: C Statement 1 is incorrect: The reserve was notified in September 2022 under the Wildlife Protection Act, 1972, not the Environment (Protection) Act, 1986. The WPA, 1972 is the primary legislation for establishing such protected areas for wildlife. Statement 2 is incorrect: The IUCN’s recognition specifically praised the reserve as a model for community-led conservation, not a top-down, state-enforced one. The success of the initiative relies heavily on the active participation and cooperation of local fishing communities. Statement 3 is incorrect: The seagrass beds, in addition to being the primary food for Dugongs, also support commercial fish, crabs, and shrimps, thereby directly benefiting the livelihoods of marginal fishermen in the region. This highlights the interconnectedness of ecological conservation and local economies.

#### 9. Question

Consider the following statements regarding the Dugong Conservation Reserve in Palk Bay:

• The reserve was established under the provisions of the Environment (Protection) Act, 1986.

• The IUCN’s recognition of the reserve highlights it as a global model for top-down, state-enforced conservation.

• The seagrass beds protected by the reserve are exclusively beneficial to Dugongs and have no significant commercial value.

How many of the above statements are incorrect?

How many of the above statements are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: C

• Statement 1 is incorrect: The reserve was notified in September 2022 under the Wildlife Protection Act, 1972, not the Environment (Protection) Act, 1986. The WPA, 1972 is the primary legislation for establishing such protected areas for wildlife.

• Statement 2 is incorrect: The IUCN’s recognition specifically praised the reserve as a model for community-led conservation, not a top-down, state-enforced one. The success of the initiative relies heavily on the active participation and cooperation of local fishing communities.

• Statement 3 is incorrect: The seagrass beds, in addition to being the primary food for Dugongs, also support commercial fish, crabs, and shrimps, thereby directly benefiting the livelihoods of marginal fishermen in the region. This highlights the interconnectedness of ecological conservation and local economies.

Solution: C

• Question 10 of 10 10. Question 1 points The production of 2G ethanol from lignocellulosic biomass involves several key steps. Arrange the following steps in the correct chronological sequence: Fermentation Distillation Pretreatment Hydrolysis Select the correct answer using the code given below: (a) 4-1-3-2 (b) 4-3-1-2 (c) 3-1-4-2 (d) 3-4-1-2 Correct Solution: D The process of converting complex lignocellulosic biomass into ethanol follows a specific sequence: Pretreatment (3): The first step is to break down the rigid structure of the plant cell walls (lignin, cellulose, hemicellulose). This is done through mechanical, thermal, or chemical processes to make the cellulose and hemicellulose accessible. Hydrolysis (4): Following pretreatment, enzymes (like cellulases) are used to break down the exposed cellulose and hemicellulose into simple, fermentable sugars (like glucose). This step is also known as saccharification. Fermentation (1): Microorganisms, typically yeast, are introduced to convert these simple sugars into ethanol. Distillation (2): The final step involves separating and purifying the ethanol from the fermentation broth to produce bioethanol of the required concentration for blending with petrol or for industrial use. Incorrect Solution: D The process of converting complex lignocellulosic biomass into ethanol follows a specific sequence: Pretreatment (3): The first step is to break down the rigid structure of the plant cell walls (lignin, cellulose, hemicellulose). This is done through mechanical, thermal, or chemical processes to make the cellulose and hemicellulose accessible. Hydrolysis (4): Following pretreatment, enzymes (like cellulases) are used to break down the exposed cellulose and hemicellulose into simple, fermentable sugars (like glucose). This step is also known as saccharification. Fermentation (1): Microorganisms, typically yeast, are introduced to convert these simple sugars into ethanol. Distillation (2): The final step involves separating and purifying the ethanol from the fermentation broth to produce bioethanol of the required concentration for blending with petrol or for industrial use.

#### 10. Question

The production of 2G ethanol from lignocellulosic biomass involves several key steps. Arrange the following steps in the correct chronological sequence:

• Fermentation

• Distillation

• Pretreatment

• Hydrolysis

Select the correct answer using the code given below:

• (a) 4-1-3-2

• (b) 4-3-1-2

• (c) 3-1-4-2

• (d) 3-4-1-2

Solution: D

The process of converting complex lignocellulosic biomass into ethanol follows a specific sequence:

• Pretreatment (3): The first step is to break down the rigid structure of the plant cell walls (lignin, cellulose, hemicellulose). This is done through mechanical, thermal, or chemical processes to make the cellulose and hemicellulose accessible.

• Hydrolysis (4): Following pretreatment, enzymes (like cellulases) are used to break down the exposed cellulose and hemicellulose into simple, fermentable sugars (like glucose). This step is also known as saccharification.

• Fermentation (1): Microorganisms, typically yeast, are introduced to convert these simple sugars into ethanol.

• Distillation (2): The final step involves separating and purifying the ethanol from the fermentation broth to produce bioethanol of the required concentration for blending with petrol or for industrial use.

Solution: D

The process of converting complex lignocellulosic biomass into ethanol follows a specific sequence:

• Fermentation (1): Microorganisms, typically yeast, are introduced to convert these simple sugars into ethanol.

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