Question

Explain how Chlorofluorocarbons lead to depletion of ozone.

Answer 1

Chlorofluorocarbons leads to depletion of ozone:

• Chlorofluorocarbons $\left(\mathrm{CFCs}\right)$ are the main cause of ozone layer depletion.
• These are released by solvents, spray aerosols, refrigerators, air-conditioners, etc.
• The molecules of chlorofluorocarbons in the stratosphere are broken down by ultraviolet radiations and release chlorine atoms.
• These atoms react with ozone and destroy it.