Question
  1. Expand CFC.
  2. How does it reduce ozone to oxygen?

Answer

  1. Chlorofluorocarbon.
  2.  
  • The CFCs move upward and reach the stratosphere, where the UV rays act on them and release Cl atoms.
  • The Cl acts as a catalyst and degrades ozone releasing molecular oxygen.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free