Biodiversity and Conservation PYQ's

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Previous Year Questions:

1. List of endangered species was released by-                                                                             (2024)

1) GEAC

2) WWF

3) FOAM

4) IUCN

Ans. 4 - IUCN

2. These are regarded as major cause of biodiversity loss:                                                         (2024)

A. Over exploitation

B. Co-extinction

C. Mutation

D. Habitat loss and fragmentation

E. Co-extinctions

Choose the correct option:

1) A,C and D only          2) A,B,C and D only

3) A,B and E only          4) A,B and D only

Ans. 4 - A,B and D only.

Explanation: Causes of biodiversity loss are 1) Habitat loss and fragmentation. 2) Over-exploitation

3) Alien species invasion 4) Co-extinctions

3. Tropical regions show greatest level of species richness because                                             (2024)

A. Tropical latitudes have remained relatively undisturbed for million of years, hence more time         was available for species diversification.

B. Tropical environments are more seasonal.

C. More solar energy is available in tropics.

D. Constant environment promote niche specialization.

E. Tropical environments are constant and predictable.

Choose the correct answer from the options given below.

1) A, C, D and E only

2) A and B only

3) A, B and E only

4) A, B and D only

Ans. 1 - A, C, D and E only

Explanation: Statement B is incorrect because tropical environments unlike temperate ones are less seasonal. Statement A, C, D and E are correct.

4. The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called:

(2024)

1) in-situ conservation.

2) Biodiversity conservation.

3) Semi-conservative method.

4) Sustainable development.

Ans. 2 - Biodiversity conservation

Explanation: The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called Ex-situ conservation. Ex-situ conservation is a type of biodiversity conservation and hence 2nd option is correct.

5. Match List I with List II:                                                                                                         (2024)

List I	List II
A) Robert May	I. Species are relationship
B) Alexander von Humboldt	II. Long term ecosystem experiments using outdoor plots
C) Paul Ehrlich	III. Global species diversity at about 7 million
D) David Tilman	IV. Rivet popper hypothesis

Choose the correct answer from the options given below:

1) A-II, B-III, C-I, D-IV          2) A-III, B-I, C-IV, D-II

3) A-I, B-III, C-II, D-IV          4) A-III, B-IV, C-II, D-I

Ans. 2 - A-III, B-I, C-IV, D-II

Explanation: Robert May places the global species diversity at about 7 million. Alexander von Humboldt gave the species are relationship. Paul Ehrlich gave the 'Rivet popper hypothesis'. David Tilman performed long term ecosystem experiments using outdoor plants.