Which period witnessed the largest mass extinction in Earth's history? MCQ with Answer and Explanation

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Which period witnessed the largest mass extinction in Earth's history?

A. Permian

B. Jurassic

C. Cretaceous

D. Ordovician

Answer: Option A

Solution (By JKSSB Mock Tests)

The Permian-Triassic extinction event eliminated about 90% of marine species.

This question belongs to: Geography GK Physical Geography

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Practice More Physical Geography Questions

Question #1

The Equator is located at:

A. 90° North

B. 0° Latitude

C. 23.5° North

D. 23.5° South

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Correct Answer: Option B

Explanation:
The Equator is the imaginary line at 0° latitude dividing the Earth into Northern and Southern Hemispheres.

This question belongs to: Geography GK Physical Geography

Question #2

The world's largest freshwater wetland is:

A. Pantanal

B. Okavango

C. Everglades

D. Sundarbans

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Correct Answer: Option A

Explanation:
The Pantanal in South America is the world's largest tropical wetland.

This question belongs to: Geography GK Physical Geography

Question #3

The world's largest delta is formed by:

A. Amazon River

B. Ganga-Brahmaputra River System

C. Nile River

D. Mississippi River

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Correct Answer: Option B

Explanation:
The Ganga-Brahmaputra Delta (Sundarbans Delta) is the world's largest delta.

This question belongs to: Geography GK Physical Geography

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