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Biodiversity+Conservation

Environment · 10 Questions
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Question 1

Consider the following statements regarding 'Biodiversity Hotspots':

  1. To qualify as a biodiversity hotspot, a region must contain at least 1,500 species of vascular plants as endemics.
  2. It must have 30% or less of its original natural vegetation remaining.
  3. The concept of biodiversity hotspots was first introduced by British ecologist Norman Myers.

Which of the statements given above are correct?

  • A 1, 2 and 3
  • B 1 and 2 only
  • C 2 and 3 only
  • D 1 and 3 only
✓ Correct Answer: Option A
Explanation:
Explanation: All three statements are correct. The concept of Biodiversity Hotspots was given by Norman Myers in 1988. To qualify as a hotspot, a region must meet two strict criteria: it must contain at least 1,500 species of vascular plants (> 0.5% of the world's total) as endemics (highly irreplaceable), and it has to have lost at least 70% of its original habitat, meaning it retains 30% or less of its original natural vegetation (highly threatened).
Question 2

With reference to the Wildlife Protection Act, 1972, consider the following statements:

  1. Animals listed in Schedule I and Part II of Schedule II get absolute protection.
  2. The Chief Wildlife Warden may grant permission to hunt any wild animal specified in Schedule I if it has become dangerous to human life.
  3. Plant species are not covered under any schedule of this Act.

Which of the statements given above is/are correct?

  • A 2 and 3 only
  • B 1 and 3 only
  • C 1 and 2 only
  • D 1, 2 and 3
✓ Correct Answer: Option C
Explanation:
Explanation: Statement 1 is correct; animals under Schedule I and Part II of Schedule II enjoy the highest level of legal protection in India. Statement 2 is correct; the Chief Wildlife Warden can legally permit the hunting of a Schedule I animal if it becomes a direct threat to human life (e.g., a man-eating tiger) or is disabled/diseased beyond recovery. Statement 3 is incorrect; the Wildlife Protection Act does cover plants. Schedule VI of the Act lists specified endemic plants that are prohibited from cultivation and planting (e.g., Blue Vanda, Pitcher plant).
Question 3

 Consider the following statements regarding the Convention on Biological Diversity (CBD):

  1. It is a legally binding multilateral environmental treaty.
  2. The Cartagena Protocol under the CBD deals exclusively with Access and Benefit-sharing (ABS).
  3. The Nagoya Protocol aims to ensure the safe handling, transport, and use of living modified organisms (LMOs).

Which of the statements given above is/are correct?

  • A 1 and 2 only
  • B 2 and 3 only
  • C 1 only
  • D 1, 2 and 3
✓ Correct Answer: Option C
Explanation:
Explanation: Statement 1 is correct; the CBD is a legally binding international treaty. Statements 2 and 3 are incorrect because their descriptions are swapped. The Cartagena Protocol deals with the safe handling, transport, and use of Living Modified Organisms (LMOs) resulting from modern biotechnology. The Nagoya Protocol deals with Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization (ABS).
Question 4

With reference to Biosphere Reserves in India, consider the following statements:

  1. The core zone is strictly protected and kept entirely free from human interference.
  2. The transition zone allows for sustainable human activities such as settlements and non-destructive forestry.
  3. All Biosphere Reserves in India are currently part of the UNESCO World Network of Biosphere Reserves.

Which of the statements given above are correct?

  • A 1 and 3 only
  • B 1, 2 and 3
  • C 2 and 3 only
  • D 1 and 2 only
✓ Correct Answer: Option D
Explanation:
Explanation: Statements 1 and 2 are correct descriptions of the zonation of Biosphere Reserves. The core area is legally protected and undisturbed, while the transition zone allows for sustainable human-nature interaction. Statement 3 is incorrect. India has 18 notified Biosphere Reserves, but currently, only 12 of them are recognized internationally under the UNESCO Man and the Biosphere (MAB) World Network.
Question 5

Consider the following statements regarding CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora):

  1. CITES is administered by the United Nations Environment Programme (UNEP).
  2. Appendix I of CITES includes species threatened with extinction, and commercial trade in these species is generally prohibited.
  3. It does not take the place of national laws but provides a framework to be respected by member Parties.

Which of the statements given above are correct?

  • A 1, 2 and 3
  • B 1 and 3 only
  • C 2 and 3 only
  • D 1 and 2 only
✓ Correct Answer: Option A
Explanation:
Explanation: All statements are correct. CITES is administered by UNEP and its secretariat is located in Geneva. Appendix I lists species threatened with extinction, and trade in them is strictly prohibited for commercial purposes (allowed only in exceptional circumstances like scientific research). CITES provides an international framework, but it is not a substitute for national laws; countries must pass their own domestic legislation to implement CITES protocols.
Question 6

Consider the following statements regarding Mangrove ecosystems:

  1. They exhibit a viviparous mode of reproduction, meaning seeds germinate while still attached to the parent tree.
  2. They develop specialized root systems called pneumatophores to cope with anaerobic soil conditions.
  3. India holds the largest contiguous area of mangroves in the world.

Which of the statements given above is/are correct?

  • A 2 and 3 only
  • B 1 and 2 only
  • C 1 and 3 only
  • D 1, 2 and 3
✓ Correct Answer: Option B
Explanation:
Explanation: Statements 1 and 2 are correct. Mangroves are uniquely adapted to harsh coastal conditions. Vivipary (seeds germinating on the tree before falling) and pneumatophores (blind roots growing upwards for oxygen exchange in waterlogged, anaerobic soil) are classic adaptations. Statement 3 is incorrect. Indonesia holds the largest area of mangroves globally, accounting for roughly a fifth of the world's total. India has about 3% of the world's mangrove cover.
Question 7

 With reference to the IUCN Red List, consider the following statements:

  1. A taxon is designated as 'Critically Endangered' when its population has declined by 90% or more over the last 10 years.
  2. Both the Great Indian Bustard and the Hangul (Kashmir Stag) are currently listed as Critically Endangered.
  3. The 'Data Deficient' category implies that the species is heavily threatened, but exact population numbers are unknown.

Which of the statements given above are correct?

  • A 1, 2 and 3
  • B 1 and 3 only
  • C 1 and 2 only
  • D 2 and 3 only
✓ Correct Answer: Option C
Explanation:
Explanation: Statement 1 is correct; a 90% decline in population over 10 years or 3 generations is one of the quantitative criteria for a species to be listed as Critically Endangered. Statement 2 is correct; both the Great Indian Bustard and Hangul are Critically Endangered. Statement 3 is incorrect. 'Data Deficient' does not imply the species is heavily threatened; it simply means there is inadequate information to make a direct or indirect assessment of its risk of extinction.
Question 8

Consider the following statements about Coral Reefs:

  1. Zooxanthellae are microscopic photosynthetic algae that live in a symbiotic relationship with coral polyps.
  2. Coral bleaching is exclusively caused by an abnormal rise in sea surface temperatures.
  3. Fringing reefs are the most common type of reef found in the Andaman and Nicobar Islands.

Which of the statements given above is/are correct?

  • A 1 and 3 only
  • B 1 and 2 only
  • C 2 and 3 only
  • D 1, 2 and 3
✓ Correct Answer: Option A
Explanation:
Explanation: Statement 1 is correct; zooxanthellae provide corals with nutrients and color, while corals provide a protected environment. Statement 3 is correct; fringing reefs (which grow directly from the shore) are the dominant reef type in the Andaman and Nicobar Islands. Statement 2 is incorrect because coral bleaching is not exclusively caused by rising temperatures. It can also be triggered by severe cold water spells, extreme low tides, increased solar radiation, pollution, or changes in ocean chemistry
Question 9

Consider the following statements regarding Project Tiger and the NTCA:

  1. The National Tiger Conservation Authority (NTCA) is a statutory body under the Ministry of Environment, Forest and Climate Change.
  2. The Prime Minister of India serves as the ex-officio Chairman of the NTCA.
  3. Project Tiger is implemented as a Centrally Sponsored Scheme.

Which of the statements given above are correct?

  • A 1 and 2 only
  • B 1 and 3 only
  • C 2 and 3 only
  • D 1, 2 and 3
✓ Correct Answer: Option B
Explanation:
Explanation: Statement 1 is correct; NTCA was constituted under the Wildlife (Protection) Amendment Act, 2006. Statement 3 is correct; Project Tiger is a Centrally Sponsored Scheme providing funding support to tiger range States. Statement 2 is incorrect; the Chairman of the NTCA is the Minister for Environment, Forest and Climate Change, not the Prime Minister.
Question 10

With reference to Eco-Sensitive Zones (ESZs), consider the following statements:

  1. ESZs are explicitly defined and declared under the provisions of the Wildlife Protection Act, 1972.
  2. The primary purpose of declaring ESZs is to act as a 'shock absorber' for strictly protected areas.
  3. Commercial mining is completely prohibited within the notified boundaries of Eco-Sensitive Zones.

Which of the statements given above are correct?

  • A 1 and 2 only
  • B 2 and 3 only
  • C 1 and 3 only
  • D 1, 2 and 3
✓ Correct Answer: Option B
Explanation:
Explanation: Statement 2 is correct; ESZs act as a transition zone or 'shock absorber' from areas of high protection to areas of lesser protection. Statement 3 is correct; highly polluting industries and commercial mining are prohibited activities inside an ESZ. Statement 1 is incorrect. ESZs are not explicitly mentioned in the Wildlife Protection Act. They are declared by the Central Government under the Environment (Protection) Act, 1986.

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