Which of the following substances is mainly responsible for the depletion of the ozone layer?
- Oxgyen
-
Chlorofluorocarbon
- Carbon (ll) oxide
- Nitrogen (ll) oxide
The correct answer is: B
Explanation
Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere