Question

Write short notes on:
Ozone layer

Hint:

The ozone layer protects life on Earth from UV rays, but pollutants like CFCs are depleting it.

Answer 1

The ozone layer is a protective shield in the Earth's stratosphere that absorbs harmful ultraviolet (UV) radiation from the Sun. It consists of ozone (\( O_3 \)) molecules and prevents excessive UV exposure, which can cause skin cancer and environmental damage. However, human activities releasing CFCs have led to ozone depletion, increasing health risks.