UPSC Static Quiz – Environment : 11 October 2025

UPSC Static Quiz – Environment : 11 2025 We will post 5 questions daily on static topics mentioned in the UPSC civil services preliminary examination syllabus. Each week will focus on a specific topic from the syllabus, such as History of India and Indian National Movement, Indian and World Geography, and more. We are excited to bring you our daily UPSC Static Quiz, designed to help you prepare for the UPSC Civil Services Preliminary Examination. Each day, we will post 5 questions on static topics mentioned in the UPSC syllabus. This week, we are focusing on Indian and World Geography.

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• Question 1 of 5 1. Question Consider the following pairs: Invasive Alien Species Primary Ecological Impact 1. Eichhornia crassipes Choking of wetlands leading to hypoxia 2. Chromolaena odorata Suppressing regeneration in forest ecosystems 3. Aedes aegypti Spreading viral diseases like dengue and Zika 4. Acacia nilotica Outcompeting native grasses in arid regions How many pairs given above are correctly matched? (a) Only one (b) Only two (c) Only three (d) All four Correct Solution: C Pair 1 is correctly matched. Eichhornia crassipes, commonly known as Water Hyacinth, is a free-floating aquatic weed notorious for its rapid proliferation. It forms dense mats on the surface of water bodies, which blocks sunlight from reaching submerged native plants, causing them to die. The subsequent decomposition of this large biomass by bacteria consumes large amounts of dissolved oxygen, leading to hypoxic (low oxygen) or anoxic (no oxygen) conditions, which can cause massive fish kills and severely degrade the aquatic ecosystem. Pair 2 is correctly matched. Chromolaena odorata (Siam Weed) is an aggressive terrestrial invasive plant that spreads rapidly in forest fringes, degraded lands, and agricultural areas. It forms dense stands that outcompete and suppress the growth and regeneration of native herbs, shrubs, and tree seedlings, thereby hindering forest succession and reducing biodiversity. Pair 3 is correctly matched. Aedes aegypti is an invasive mosquito species that is not an ecological threat in the traditional sense but is a major public health menace. It is a primary vector for several dangerous viral diseases, including dengue, chikungunya, Zika, and yellow fever. Its ability to breed in small, artificial water containers has allowed it to thrive in urban and semi-urban environments globally, making it a significant invasive species from a human health perspective. Pair 4 is incorrectly matched. Acacia nilotica, commonly known as Babul or Kikar, is a native Indian tree species, not an invasive alien species. It is a valuable component of arid and semi-arid ecosystems in India, providing fodder, fuel, and timber. In fact, it is sometimes threatened by invasive species like Lantana camara. Incorrect Solution: C Pair 1 is correctly matched. Eichhornia crassipes, commonly known as Water Hyacinth, is a free-floating aquatic weed notorious for its rapid proliferation. It forms dense mats on the surface of water bodies, which blocks sunlight from reaching submerged native plants, causing them to die. The subsequent decomposition of this large biomass by bacteria consumes large amounts of dissolved oxygen, leading to hypoxic (low oxygen) or anoxic (no oxygen) conditions, which can cause massive fish kills and severely degrade the aquatic ecosystem. Pair 2 is correctly matched. Chromolaena odorata (Siam Weed) is an aggressive terrestrial invasive plant that spreads rapidly in forest fringes, degraded lands, and agricultural areas. It forms dense stands that outcompete and suppress the growth and regeneration of native herbs, shrubs, and tree seedlings, thereby hindering forest succession and reducing biodiversity. Pair 3 is correctly matched. Aedes aegypti is an invasive mosquito species that is not an ecological threat in the traditional sense but is a major public health menace. It is a primary vector for several dangerous viral diseases, including dengue, chikungunya, Zika, and yellow fever. Its ability to breed in small, artificial water containers has allowed it to thrive in urban and semi-urban environments globally, making it a significant invasive species from a human health perspective. Pair 4 is incorrectly matched. Acacia nilotica, commonly known as Babul or Kikar, is a native Indian tree species, not an invasive alien species. It is a valuable component of arid and semi-arid ecosystems in India, providing fodder, fuel, and timber. In fact, it is sometimes threatened by invasive species like Lantana camara.

#### 1. Question

Consider the following pairs:

Invasive Alien Species | Primary Ecological Impact

1.Eichhornia crassipes | Choking of wetlands leading to hypoxia
2.Chromolaena odorata | Suppressing regeneration in forest ecosystems
3.Aedes aegypti | Spreading viral diseases like dengue and Zika
4.Acacia nilotica | Outcompeting native grasses in arid regions

How many pairs given above are correctly matched?

• (a) Only one

• (b) Only two

• (c) Only three

• (d) All four

Solution: C

• Pair 1 is correctly matched. Eichhornia crassipes, commonly known as Water Hyacinth, is a free-floating aquatic weed notorious for its rapid proliferation. It forms dense mats on the surface of water bodies, which blocks sunlight from reaching submerged native plants, causing them to die. The subsequent decomposition of this large biomass by bacteria consumes large amounts of dissolved oxygen, leading to hypoxic (low oxygen) or anoxic (no oxygen) conditions, which can cause massive fish kills and severely degrade the aquatic ecosystem.

• Pair 2 is correctly matched. Chromolaena odorata (Siam Weed) is an aggressive terrestrial invasive plant that spreads rapidly in forest fringes, degraded lands, and agricultural areas. It forms dense stands that outcompete and suppress the growth and regeneration of native herbs, shrubs, and tree seedlings, thereby hindering forest succession and reducing biodiversity.

• Pair 3 is correctly matched. Aedes aegypti is an invasive mosquito species that is not an ecological threat in the traditional sense but is a major public health menace. It is a primary vector for several dangerous viral diseases, including dengue, chikungunya, Zika, and yellow fever. Its ability to breed in small, artificial water containers has allowed it to thrive in urban and semi-urban environments globally, making it a significant invasive species from a human health perspective.

• Pair 4 is incorrectly matched. Acacia nilotica, commonly known as Babul or Kikar, is a native Indian tree species, not an invasive alien species. It is a valuable component of arid and semi-arid ecosystems in India, providing fodder, fuel, and timber. In fact, it is sometimes threatened by invasive species like Lantana camara.

Solution: C

• Question 2 of 5 2. Question Consider the following statements: A National Park can be established by a notification from the Central Government only. A Biosphere Reserve may contain one or more National Parks or Wildlife Sanctuaries within its boundaries. Which of the above statements are correct? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2 Correct Solution: B Statement 1 is incorrect. Under the Wildlife (Protection) Act, 1972, a National Park is declared by the State Government through a notification. While the Central Government also has the power to declare areas as sanctuaries or national parks under Section 38, the primary authority for declaration within a state lies with the State Government. Statement 2 is correct. Biosphere Reserves are very large landscape-level protected areas. Their design is comprehensive and often encompasses existing protected areas. It is a common and intended feature for a Biosphere Reserve’s Core Zone to be comprised of one or more existing National Parks and/or Wildlife Sanctuaries, which already have a high degree of legal protection under the WPA, 1972. For example, the Nilgiri Biosphere Reserve includes Mudumalai, Bandipur, and Nagarhole National Parks within its boundaries. Incorrect Solution: B Statement 1 is incorrect. Under the Wildlife (Protection) Act, 1972, a National Park is declared by the State Government through a notification. While the Central Government also has the power to declare areas as sanctuaries or national parks under Section 38, the primary authority for declaration within a state lies with the State Government. Statement 2 is correct. Biosphere Reserves are very large landscape-level protected areas. Their design is comprehensive and often encompasses existing protected areas. It is a common and intended feature for a Biosphere Reserve’s Core Zone to be comprised of one or more existing National Parks and/or Wildlife Sanctuaries, which already have a high degree of legal protection under the WPA, 1972. For example, the Nilgiri Biosphere Reserve includes Mudumalai, Bandipur, and Nagarhole National Parks within its boundaries.

#### 2. Question

Consider the following statements:

• A National Park can be established by a notification from the Central Government only.

• A Biosphere Reserve may contain one or more National Parks or Wildlife Sanctuaries within its boundaries.

Which of the above statements are correct?

• (a) 1 only

• (b) 2 only

• (c) Both 1 and 2

• (d) Neither 1 nor 2

Solution: B

• Statement 1 is incorrect. Under the Wildlife (Protection) Act, 1972, a National Park is declared by the State Government through a notification. While the Central Government also has the power to declare areas as sanctuaries or national parks under Section 38, the primary authority for declaration within a state lies with the State Government.

• Statement 2 is correct. Biosphere Reserves are very large landscape-level protected areas. Their design is comprehensive and often encompasses existing protected areas. It is a common and intended feature for a Biosphere Reserve’s Core Zone to be comprised of one or more existing National Parks and/or Wildlife Sanctuaries, which already have a high degree of legal protection under the WPA, 1972. For example, the Nilgiri Biosphere Reserve includes Mudumalai, Bandipur, and Nagarhole National Parks within its boundaries.

Solution: B

• Question 3 of 5 3. Question With reference to Conservation Reserves and Community Reserves in India, consider the following statements: Both categories were introduced through the Wildlife (Protection) Amendment Act of 2002. A Conservation Reserve can be declared on government land, whereas a Community Reserve can be declared on private or community land. Declaration of a Community Reserve requires the explicit consent of the individual or community owning the land. 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 correct. Both Conservation Reserves and Community Reserves were introduced as new categories of protected areas through the Wildlife (Protection) Amendment Act of 2002 (enacted in 2003). This was done to provide a more flexible mechanism for conservation outside the strict regimes of National Parks and Sanctuaries, particularly to protect corridors and involve local communities. Statement 2 is correct. Conservation Reserves are declared on lands owned by the State Government that are adjacent to existing protected areas or act as corridors. Community Reserves, on the other hand, are a unique mechanism that allows for the declaration of protected areas on land that is privately owned or belongs to a community. Statement 3 is correct. The declaration of a Community Reserve is a voluntary process. The State Government can declare an area as a Community Reserve only after an individual or a community has volunteered to conserve its wildlife and habitat. This element of consent and community initiative is the cornerstone of the Community Reserve concept, distinguishing it from other protected areas where the government exercises eminent domain. Incorrect Solution: C Statement 1 is correct. Both Conservation Reserves and Community Reserves were introduced as new categories of protected areas through the Wildlife (Protection) Amendment Act of 2002 (enacted in 2003). This was done to provide a more flexible mechanism for conservation outside the strict regimes of National Parks and Sanctuaries, particularly to protect corridors and involve local communities. Statement 2 is correct. Conservation Reserves are declared on lands owned by the State Government that are adjacent to existing protected areas or act as corridors. Community Reserves, on the other hand, are a unique mechanism that allows for the declaration of protected areas on land that is privately owned or belongs to a community. Statement 3 is correct. The declaration of a Community Reserve is a voluntary process. The State Government can declare an area as a Community Reserve only after an individual or a community has volunteered to conserve its wildlife and habitat. This element of consent and community initiative is the cornerstone of the Community Reserve concept, distinguishing it from other protected areas where the government exercises eminent domain.

#### 3. Question

With reference to Conservation Reserves and Community Reserves in India, consider the following statements:

• Both categories were introduced through the Wildlife (Protection) Amendment Act of 2002.

• A Conservation Reserve can be declared on government land, whereas a Community Reserve can be declared on private or community land.

• Declaration of a Community Reserve requires the explicit consent of the individual or community owning the land.

How many of the above statements are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: C

• Statement 1 is correct. Both Conservation Reserves and Community Reserves were introduced as new categories of protected areas through the Wildlife (Protection) Amendment Act of 2002 (enacted in 2003). This was done to provide a more flexible mechanism for conservation outside the strict regimes of National Parks and Sanctuaries, particularly to protect corridors and involve local communities.

• Statement 2 is correct. Conservation Reserves are declared on lands owned by the State Government that are adjacent to existing protected areas or act as corridors. Community Reserves, on the other hand, are a unique mechanism that allows for the declaration of protected areas on land that is privately owned or belongs to a community.

• Statement 3 is correct. The declaration of a Community Reserve is a voluntary process. The State Government can declare an area as a Community Reserve only after an individual or a community has volunteered to conserve its wildlife and habitat. This element of consent and community initiative is the cornerstone of the Community Reserve concept, distinguishing it from other protected areas where the government exercises eminent domain.

Solution: C

• Question 4 of 5 4. Question Match List-I with List-II and List-III List-I (Protected Area) List-II (Primary Land Tenure) List-III (Key Feature) A. National Park 1. Private/Community Land X. Zoned management (Core, Buffer) B. Biosphere Reserve 2. Government Land Y. Highest degree of legal protection under WPA, 1972 C. Community Reserve 3. Government Land Z. Voluntary declaration by landowners Select the correct answer code: (a) 2-Y; 3-X; 1-Z (b) 3-Y; 2-Z; 1-X (c) 1-Z; 3-X; 2-Y (d) 2-X; 1-Y; 3-Z Correct Solution: A National Park: A National Park is declared on Government Land (matching with 2 in List-II). Its defining characteristic under the Wildlife (Protection) Act, 1972, is the highest degree of legal protection, where almost all human activities are prohibited (matching with Y in List-III). Thus, the correct combination for A is 2-Y. Biosphere Reserve: A Biosphere Reserve is a large landscape, typically on Government Land (matching with 3 in List-II, which is functionally the same as 2 for this purpose). Its unique and defining feature is its zoned management structure, comprising a Core, Buffer, and Transition zone, as per UNESCO’s MAB Programme guidelines (matching with X in List-III). Thus, the correct combination for B is 3-X. Community Reserve: The defining feature of a Community Reserve is that it can be declared on Private or Community Land (matching with 1 in List-II). This is possible only through a voluntary declaration by the landowners or the community, who agree to dedicate the land for conservation (matching with Z in List-III). Thus, the correct combination for C is 1-Z. Incorrect Solution: A National Park: A National Park is declared on Government Land (matching with 2 in List-II). Its defining characteristic under the Wildlife (Protection) Act, 1972, is the highest degree of legal protection, where almost all human activities are prohibited (matching with Y in List-III). Thus, the correct combination for A is 2-Y. Biosphere Reserve: A Biosphere Reserve is a large landscape, typically on Government Land (matching with 3 in List-II, which is functionally the same as 2 for this purpose). Its unique and defining feature is its zoned management structure, comprising a Core, Buffer, and Transition zone, as per UNESCO’s MAB Programme guidelines (matching with X in List-III). Thus, the correct combination for B is 3-X. Community Reserve: The defining feature of a Community Reserve is that it can be declared on Private or Community Land (matching with 1 in List-II). This is possible only through a voluntary declaration by the landowners or the community, who agree to dedicate the land for conservation (matching with Z in List-III). Thus, the correct combination for C is 1-Z.

#### 4. Question

Match List-I with List-II and List-III

List-I (Protected Area) | List-II (Primary Land Tenure) | List-III (Key Feature)

A. National Park | 1. Private/Community Land | X. Zoned management (Core, Buffer)

B. Biosphere Reserve | 2. Government Land | Y. Highest degree of legal protection under WPA, 1972

C. Community Reserve | 3. Government Land | Z. Voluntary declaration by landowners

Select the correct answer code:

• (a) 2-Y; 3-X; 1-Z

• (b) 3-Y; 2-Z; 1-X

• (c) 1-Z; 3-X; 2-Y

• (d) 2-X; 1-Y; 3-Z

Solution: A

• National Park: A National Park is declared on Government Land (matching with 2 in List-II). Its defining characteristic under the Wildlife (Protection) Act, 1972, is the highest degree of legal protection, where almost all human activities are prohibited (matching with Y in List-III). Thus, the correct combination for A is 2-Y.

• Biosphere Reserve: A Biosphere Reserve is a large landscape, typically on Government Land (matching with 3 in List-II, which is functionally the same as 2 for this purpose). Its unique and defining feature is its zoned management structure, comprising a Core, Buffer, and Transition zone, as per UNESCO’s MAB Programme guidelines (matching with X in List-III). Thus, the correct combination for B is 3-X.

• Community Reserve: The defining feature of a Community Reserve is that it can be declared on Private or Community Land (matching with 1 in List-II). This is possible only through a voluntary declaration by the landowners or the community, who agree to dedicate the land for conservation (matching with Z in List-III). Thus, the correct combination for C is 1-Z.

Solution: A

• Question 5 of 5 5. Question With reference to the National Tiger Conservation Authority (NTCA), consider the following statements: It is a statutory body constituted to strengthen tiger conservation in India. It is chaired by the Union Minister of Environment, Forest and Climate Change. One of its functions is to approve the Tiger Conservation Plan prepared by the State Governments. 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 correct. The NTCA was established as a statutory body through the Wildlife (Protection) Amendment Act of 2006. This was done to provide legal authority to “Project Tiger” and create a formal institutional mechanism for the management of tiger reserves. Its establishment gave a legal backing to tiger conservation efforts, which were previously managed as a centrally sponsored scheme. Statement 2 is correct. As per Section 38L of the Wildlife (Protection) Act, 1972, the National Tiger Conservation Authority is chaired by the Union Minister in charge of the Ministry of Environment, Forest and Climate Change. The Minister of State in the ministry serves as the Vice-Chairperson. Statement 3 is correct. A core mandate of the NTCA is to ensure that tiger reserves are managed based on a scientifically prepared Tiger Conservation Plan (TCP). The Act specifies that the State Government shall prepare a TCP, which must then be approved by the NTCA. The NTCA provides technical support for the preparation of these plans and ensures they adhere to national guidelines for habitat management, protection, and addressing human-wildlife conflict. Incorrect Solution: C Statement 1 is correct. The NTCA was established as a statutory body through the Wildlife (Protection) Amendment Act of 2006. This was done to provide legal authority to “Project Tiger” and create a formal institutional mechanism for the management of tiger reserves. Its establishment gave a legal backing to tiger conservation efforts, which were previously managed as a centrally sponsored scheme. Statement 2 is correct. As per Section 38L of the Wildlife (Protection) Act, 1972, the National Tiger Conservation Authority is chaired by the Union Minister in charge of the Ministry of Environment, Forest and Climate Change. The Minister of State in the ministry serves as the Vice-Chairperson. Statement 3 is correct. A core mandate of the NTCA is to ensure that tiger reserves are managed based on a scientifically prepared Tiger Conservation Plan (TCP). The Act specifies that the State Government shall prepare a TCP, which must then be approved by the NTCA. The NTCA provides technical support for the preparation of these plans and ensures they adhere to national guidelines for habitat management, protection, and addressing human-wildlife conflict.

#### 5. Question

With reference to the National Tiger Conservation Authority (NTCA), consider the following statements:

• It is a statutory body constituted to strengthen tiger conservation in India.

• It is chaired by the Union Minister of Environment, Forest and Climate Change.

• One of its functions is to approve the Tiger Conservation Plan prepared by the State Governments.

How many of the above statements are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: C

• Statement 1 is correct. The NTCA was established as a statutory body through the Wildlife (Protection) Amendment Act of 2006. This was done to provide legal authority to “Project Tiger” and create a formal institutional mechanism for the management of tiger reserves. Its establishment gave a legal backing to tiger conservation efforts, which were previously managed as a centrally sponsored scheme.

• Statement 2 is correct. As per Section 38L of the Wildlife (Protection) Act, 1972, the National Tiger Conservation Authority is chaired by the Union Minister in charge of the Ministry of Environment, Forest and Climate Change. The Minister of State in the ministry serves as the Vice-Chairperson.

• Statement 3 is correct. A core mandate of the NTCA is to ensure that tiger reserves are managed based on a scientifically prepared Tiger Conservation Plan (TCP). The Act specifies that the State Government shall prepare a TCP, which must then be approved by the NTCA. The NTCA provides technical support for the preparation of these plans and ensures they adhere to national guidelines for habitat management, protection, and addressing human-wildlife conflict.

Solution: C

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