Home Biology Biodiversity and Conservation Importance and Loss of Biodiversity Which of the following is the most important…
Biology Biodiversity and Conservation Importance and Loss of Biodiversity Single Correct MCQ
Published on: August 11, 2026

Which of the following is the most important cause for animals and plants being driven to extinction?

A
Drought and floods
B
Economic exploitation
C
Alien species invasion
D
Habitat loss and fragmentation

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Verified by Experts
The correct answer is:
D

The most important cause of extinction of plants and animals is habitat loss and fragmentation.

When natural habitats are destroyed (like forests cut for agriculture or cities), species lose their homes.

Fragmentation divides populations, making survival and reproduction difficult.

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