ECOLOGY
BIODIVERSITY AND ITS CONSERVATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During the long period ( > 3 billion years) since theorigin and diversification of life on earth there arehow many episodes of mass extinction of species?
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4
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5
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6
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7
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Explanation:
Detailed explanation-1: -During the long period (> 3 billion years) since the origin and diversification of life on earth there were five episodes of mass extinction of species.
Detailed explanation-2: -During the long period since the origin and diversification of life on earth, there have been five episodes of mass extinction of species.
Detailed explanation-3: -Unlike previous extinction events caused by natural phenomena, the sixth mass extinction is driven by human activity, primarily (though not limited to) the unsustainable use of land, water and energy use, and climate change. Currently, 40% of all land has been converted for food production.
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