Topic: Biodiversity: concept, patterns, importance, loss· Ecology and Environment

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

Doubtly Asked 30 Oct 2026 NEET UG 2016 Phase 1 Practice test neet Save WhatsApp Report

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Answer: 3. Habitat loss and fragmentation

Key idea: The most important cause of species extinction is habitat loss and fragmentation.

Over-exploitation, alien species invasion and co-extinctions also contribute, but they are less important. This is the first of the 'evil quartet' of causes.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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

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