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Question

The zone of atmosphere in which the ozone layer is present is called

A
Ionosphere
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B
Mesosphere
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C
Stratosphere
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D
Troposphere
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Solution

The correct option is C Stratosphere
The ozone layer is mainly found in the lower portion of the stratosphere, i.e. approximately 20 -30 km above the earth, though its thickness varies seasonally and geographically. Ozone layer acts as a shield by absorbing UV- rays from the sun.

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