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Question

Which of these actions does not cause decrease in biodiversity?
  1. Pollution
  2. Overgrazing
  3. Afforestation
  4. Forest fire

A
Pollution
B
Forest fire
C
Overgrazing
D
Afforestation
Solution
Verified by Toppr

Decrease or loss of biodiversity can be brought by pollution in environment and habitat, forest fires and loss of habitat and overgrazing. While afforestation or planting of forest trees cause conservation of natural habitat thus saving the biodiversity.
So, the correct answer is 'Afforestation'.

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