Multiple choice

Ozone hole in the atmosphere is largely caused by the presence of

  1. oxygen

  2. hydrogen

  3. chlorofluoro carbon

  4. radioactive waste

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chlorofluorocarbons (CFCs) release chlorine atoms when exposed to UV radiation, which then destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules, creating the Antarctic ozone hole.