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7 August, 13:02

Which defines background extinction?

Question 17 options:

an accelerated extinction rate

extinctions of unknown species

mass extinctions in the past

the natural extinction rate

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Answers (1)
  1. 7 August, 13:31
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    The natural extinction rate defines background extinction

    Explanation:

    Extinction endured primarily control of paleontology. Background extinctions are the continuous importance of common environmental variations, local disasters, or inter species conflict. Background extinction is principally a local appearance. It happens only one or a few species at any time, habitually inside a distinct area.

    Ecologists measure that the present-day extinction rate is 1,000 to 10,000 times the background extinction rate between one and five species per year because of deforestation, environment loss, over hunting, pollution, climate modification, and other human activities.
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