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

1. Over - exploitation
2. Alien species invasion
3. Habitat loss and fragmentation
4. Co-extinctions

Correct answer: Habitat loss and fragmentation

Solution

Habitat loss and fragmentation is the leading cause of extinction because it directly reduces the area, resources, and connectivity species need to maintain viable populations. When habitats are broken up, populations become smaller and more isolated, making them more vulnerable to inbreeding, predation, and local extinction.

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