Which of the following pollutants are responsible for depletion of ozone layer?

Options

A. Methane and Carbon dioxide
B. Carbon dioxide and Carbon monoxide
C. Chlorofluoro carbons
D. Acid rain

Answer

C

Explanation

Chlorofluoro carbons (CFCs) are responsible for depeletion of ozone layer. CFC molecules reacts with ozone molecules and result in formation of oxygen gas (O) and free radicals of oxygen, which further reacts with other ozone molecules and depletes the ozone. They are usually used in refrigerators, air conditioners and in manufacturing foams and aerosol sprays.