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Question (21)

QN008719

The Sangai deer is endemic to

(A) Rajasthan Desert
(B) Keibul Lamjo National Park, Manipur
(C) Sundarbans Delta
(D) Nilgiri Hills

Correct Answer: B

Explanation:

The Sangai deer is found in Keibul Lamjo National Park in Manipur.

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Question (22)

QN008720

Phumdis are best described as

(A) Coral reefs
(B) Floating grasslands with rooted vegetation
(C) Desert dunes
(D) Snow-covered meadows

Correct Answer: B

Explanation:

Phumdis are floating masses of vegetation and organic matter.

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Question (23)

QN008721

The Sangai deer was declared extinct in

(A) 1947
(B) 1951
(C) 1953
(D) 1961

Correct Answer: B

Explanation:

The Sangai deer was declared extinct in 1951.

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Question (24)

QN008722

The rediscovery of the Sangai deer in 1953 demonstrates that

(A) Species identification is important in conservation
(B) Extinct species always reappear
(C) Biodiversity cannot be measured
(D) Habitat loss is beneficial

Correct Answer: A

Explanation:

Correct identification helps in conservation and protection efforts.

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Question (25)

QN008723

Degeneration of phumdis poses a serious threat because

(A) They are sources of petroleum
(B) They provide habitat for the Sangai deer
(C) They increase pollution
(D) They prevent plant growth

Correct Answer: B

Explanation:

Loss of phumdis means loss of habitat for the Sangai deer.

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Question (26)

QN008724

If phumdi area decreases by 40%, which is the most reasonable prediction?

(A) Sangai habitat availability will decline
(B) Sangai population will automatically increase
(C) Biodiversity will remain unaffected
(D) Deer will become aquatic

Correct Answer: A

Explanation:

Reduced habitat area decreases available living space for Sangai deer.

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Question (27)

QN008725

Which conservation action would most directly help the Sangai deer?

(A) Removing vegetation from phumdis
(B) Protecting and restoring phumdi habitats
(C) Increasing industrial activity nearby
(D) Draining Loktak Lake

Correct Answer: B

Explanation:

Habitat restoration is essential for conserving the Sangai deer.

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Question (28)

QN008726

A food web contains 50 species. If 10% of the species disappear, how many species are lost?

(A) 2
(B) 5
(C) 10
(D) 15

Correct Answer: B

Explanation:

10% of 50 = 5 species.

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Question (29)

QN008727

An ecosystem contains 200 pollinator insects. Due to pesticide use, their number falls by 25%. How many pollinators remain?

(A) 50
(B) 100
(C) 150
(D) 175

Correct Answer: C

Explanation:

25% of 200 = 50; remaining = 200 − 50 = 150.

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Question (30)

QN008728

A forest originally supported 80 plant species. Habitat destruction eliminated 15 species. What percentage of species was lost?

(A) 12.5%
(B) 15%
(C) 18.75%
(D) 25%

Correct Answer: C

Explanation:

(15 ÷ 80) × 100 = 18.75%.

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Question (21)

The Sangai deer is endemic to

Explanation:

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Question (22)

Phumdis are best described as

Explanation:

Link:

Question (23)

The Sangai deer was declared extinct in

Explanation:

Link:

Question (24)

The rediscovery of the Sangai deer in 1953 demonstrates that

Explanation:

Link:

Question (25)

Degeneration of phumdis poses a serious threat because

Explanation:

Link:

Question (26)

If phumdi area decreases by 40%, which is the most reasonable prediction?

Explanation:

Link:

Question (27)

Which conservation action would most directly help the Sangai deer?

Explanation:

Link:

Question (28)

A food web contains 50 species. If 10% of the species disappear, how many species are lost?

Explanation:

Link:

Question (29)

An ecosystem contains 200 pollinator insects. Due to pesticide use, their number falls by 25%. How many pollinators remain?

Explanation:

Link:

Question (30)

A forest originally supported 80 plant species. Habitat destruction eliminated 15 species. What percentage of species was lost?

Explanation:

Link:

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