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The peak concentration ozone above surfa...

The peak concentration ozone above surface of Earth is at:

A

23 m

B

13 km

C

15 km

D

30 km

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The correct Answer is:
A
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GRB PUBLICATION-ENVIRONMENTAL ISSUES-Assertion & Reason Type Questions
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  4. (A) : Dormancy in animals through a dry season is called hibernation. ...

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  5. (A) : Freshwater animals cannot live long in sea water. (R) : They w...

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  6. (A) : Light is an important abiotic factor. (R) : Life is not possib...

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  10. (A) : Brood parasitism is a social parasitism among birds. (R) : Koe...

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  11. (A) : Decomposition is largely an oxygen requiring process. (R) : D...

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  12. (A) : The series of organisms eating one another form the food chain. ...

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  13. (A) : The successful establishment of a species in a bare area is call...

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