Question

Ozone at the higher levels of the atmosphere is a product of UV radiation acting on the _______ molecules.

• A. $O_2$
• B. $N_2$
• C. $C{O}_2$
• D. $H_2$

Answer 1

The correct option is A $O_2$

Ozone at the higher levels of the atmosphere is a product of UV radiation acting on oxygen $O_2$ molecules.

$O_2$ $\stackrel{UV}{\to }$ $O$+$O$

$O$+$O_2$ $\to$ $O_3$ (Ozone)

The sun propagates ultraviolet radiations which has an adverse effect on living beings. This layer absorbs the radiations and prohibits them from entering the outer surface of the earth.