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Question

Earth is protected from ultraviolet radiations by means of


A

Ozone layer

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B

Nitrogen

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C

Oxygen

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D

Carbon dioxide

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Solution

The correct option is A

Ozone layer


The ozone layer is a natural layer of gas in the upper atmosphere which protects humans and other living things from the harmful ultraviolet (UV) rays of the sun. This ozone layer performs the essential task of filtering out most of the sun's biologically harmful UV radiation.


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