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

1. Habitat loss and fragmentation
2. Drought and floods
3. Economic exploitation
4. Alien species invasion

Correct answer: Habitat loss and fragmentation

Solution

Habitat loss and fragmentation is the leading driver of extinction because species need suitable space, food, shelter, and breeding sites to survive. When habitats are destroyed or broken into small isolated patches, populations shrink, become more vulnerable, and may die out.

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