Write the essential function performed by ozone at the higher levels

• Our Environment (C10)

Write the essential function performed by ozone at the higher levels of the Earth’s atmosphere ? How is it produced ? Name the synthetic chemicals mainly responsible for the drop of amount of ozone in the atmosphere. How can the use of these chemicals be reduced ?

Answer

It shields the surface of the earth from the UV radiation from the sun.

O₂ + UV → O + O

O₂ + O → O₃

Chemicals Responsible: Chloro Fluoro Carbons (CFC’s)

How use can be reduced?

• Reduce the use of CFC’s by minimizing the leakage through air conditioners and refrigerators

• Finding substitute chemicals that are ozone friendly