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) are stable compounds that reach the stratosphere, where they release chlorine atoms upon exposure to UV radiation. These chlorine atoms catalyze the destruction of ozone molecules, leading to the depletion of the ozone layer.