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Which one of the following is a wrong st...

Which one of the following is a wrong statement?

A

Most of the forests have been lost in tropical areas

B

Ozone in upper part of atmosphere is harmful to animals

C

Greenhouse effect is a natural phenomenon

D

Eutrophication is a natural phenomenon in freshwater bodies

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The correct Answer is:
B
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  12. The idea of mutations was brought forth by

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  14. Which of the following statements is incorrect?

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