Theres been five major ones. We think this due to rapid change of climate, natural disaster (volcanic eruption, meteorite impact?), so species die as they cant survive the change in conditions.

BIODIVERSITY AND ITS CONSERVATION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

There’s been five major ones. We think this due to rapid change of climate, natural disaster (volcanic eruption, meteorite impact?), so species die as they can’t survive the change in conditions.

A	Mass extinction
B	Hot Spots
C	Keystone Species
D	Background Extinction

Explanation:

Detailed explanation-1: -New research from the University of Washington and Stanford University combines models of ocean conditions and animal metabolism with published lab data and paleoceanographic records to show that the Permian mass extinction in the oceans was caused by global warming that left animals unable to breathe.

Detailed explanation-2: -Cretaceous Period-66 million years ago. Triassic Period-201 million years ago. Permian Period-252 million years ago. Devonian Period-359 million years ago.

Detailed explanation-3: -Evidence suggests an asteroid impact was the main culprit. Volcanic eruptions that caused large-scale climate change may also have been involved, together with more gradual changes to Earth’s climate that happened over millions of years.

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NEET BIOLOGY

ECOLOGY

BIODIVERSITY AND ITS CONSERVATION