Question
Give two reasons for the ozone layer depiction.
Answer
The depletion of the ozone layer is primarily caused by:
- Man-made chemicals such as chlorofluorocarbons (CFCs), halons, and other ozone-depleting substances (ODSs).
- Natural phenomena such as polar stratospheric clouds, can provide a surface for chemical reactions that convert benign forms of chlorine and nitrogen into ozone-destroying forms.
