The ozone layer exists up to 20 km above the | vedclass

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Question

(A) The ozone layer in the stratosphere acts as a shield by absorbing harmful ultraviolet $(UV)$ radiation from the sun,which is beneficial for life o

Vedclass · Accepted Answer

It blocks ultraviolet radiation,so it is beneficial for us.

Vedclass · Answer

(A) The ozone layer in the stratosphere acts as a shield by absorbing harmful ultraviolet $(UV)$ radiation from the sun,which is beneficial for life on Earth. $O_3$ is a bent (angular) molecule,not linear. The conversion of $O_3$ to $O_2$ is an exothermic process,not endothermic. Therefore,the correct statement is that it blocks ultraviolet radiation and is beneficial.

The ozone layer exists up to $20 \ km$ above the Earth. Which of the following statements is true regarding the ozone layer and ozone?

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