Which of the following gases protects us from harmful sun rays?
A
Carbon dioxide
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B
Nitrogen
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C
Ozone
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D
Oxygen
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Solution
The correct option is C
Ozone
Explanation for correct option:
C. Ozone
Ozone, or trioxygen, is an inorganic molecule with a chemical formula .
The ozone layer protects from the harmful effects of the UV radiation from the sun by absorbing it and preventing it from reaching the earth's surface.
When an ozone molecule absorbs even low-energy ultraviolet radiation, it splits into an ordinary oxygen molecule and a free oxygen atom.