Shankar IAS Test: Biodiversity - UPSC MCQ

1-A-2-C-3-B

1-A-2-B-3-C

1-B-2-C-3-A

1-C-2-B-3-A

Both A and R are true, and R is the correct explanation of A.

Both A and R are true, but R is not the correct explanation of A.

A is true, but R is false.

A is false, but R is true.

Great Indian Bustard

Asian Elephant

Bengal Tiger

Indian Peafowl

High biodiversity

Specific environmental conditions

Presence of keystone species

Efficient ecosystem management

3, 1, 2, 4

3, 2, 1, 4

1, 3, 2, 4

4, 3, 2, 1

Pink Pages

Green Pages

Red Pages

Blue Pages

It is the most abundant species.

It has the largest geographical range.

Its loss can lead to significant changes in the ecosystem.

It is the top predator.

A population size fewer than 10,000 mature individuals

A reduction in population size of more than 50% over the last 10 years

A probability of extinction in the wild of at least 10% within 100 years

A population size fewer than 250 mature individuals

The species is extinct.

There is insufficient information to assess its risk of extinction.

The species is abundant and widespread.

The species is not a priority for conservation.

Bengal Tiger

Kelp in kelp forests

Atlantic Puffin

Indian Elephant

1-A, 2-B, 3-C

1-C, 2-B, 3-A

1-A, 2-C, 3-B

1-B, 2-A, 3-A

They are the most numerous species in the ecosystem.

They regulate the population of other species and maintain ecosystem balance.

They are primarily responsible for pollination.

They have the largest biomass.

Vulnerable (VU)

Endangered (EN)

Critically Endangered (CR)

Near Threatened (NT)

The financial cost of conservation.

The danger faced by plants and animals globally.

The urgency of scientific research.

The geographical areas most affected by species extinction.

Both A and R are true, and R is the correct explanation of A.

Both A and R are true, but R is not the correct explanation of A.

A is true, but R is false.

A is false, but R is true.

Indicating the overall health of an ecosystem.

Signaling the presence of a specific set of other species.

Indicating the most populous species.

Representing the most endangered species.

Is on the brink of extinction.

Has insufficient information to assess its risk of extinction.

Is abundant and not in danger.

Has been recently discovered and not yet assessed.

It is considered extinct.

It has not yet been assessed against the IUCN criteria.

It is abundant and faces no immediate threat.

It is under immediate threat of extinction.

More species are becoming extinct.

More species are being classified as Critically Endangered.

Conservation efforts are becoming more successful.

The overall number of species is increasing.

Act as top predators.

Be the most populous species.

Be the dominant primary producer in terms of abundance and influence.

Indicate environmental changes.