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Question

How much percentage of the species will be lost by end of 21st century on Earth, if the current rate of loss continues?
  1. 10%
  2. 20%
  3. 50%
  4. 40%

A
20%
B
10%
C
50%
D
40%
Solution
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If the current rate of species destruction continues, by the end of 21 st century, 50% of the existing species will become extinct. By the end of the century, half of all the species will be extinct.

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