Question

how can we reduce ozone depletion

Answer 1

The ozone depletion can be reduced by the following ways:
1) Reducing the use of appliances like refrigerators, air conditioners that are continuously producing harmful gases like Chloro Fluro Carbon (CFC) which are major cause of ozone depletion
2) By using fluorescent light bulbs instead using incandescent light bulbs.
4) Minimum use of vehicles to limit the destructive emission.