Question

Which of the following gases protects us from harmful sun rays?

A

Carbondioxide

B

Nitrogen

C

Ozone

D

Sulphurdioxide

Easy

Solution

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Correct option is C)

Ozone is an inorganic molecule which is formed by three atoms of oxygen. It is an allotrope of oxygen. Ozone protects us from harmful sun rays. It is present in ozonosphere region of stratosphere. Ozone layer absorbs dangerous UV radiation from sun rays. It protects us from skin cancer and other health damage. However, ozone layer is depleting due to harmful gases like CFCs, i.e. Chlorofluorocarbons.

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