Multiple choice

How are the CFCs responsible for the reduction of ozone layer?

  1. CFC's displace the ozone layer

  2. CFC's absorb the ozone gas

  3. CFC's react with the ozone gas

  4. CFC's cover the ozone layer

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

CFCs (chlorofluorocarbons) react chemically with ozone molecules in the stratosphere, breaking them down. This reaction occurs when UV radiation splits CFC molecules, releasing chlorine atoms that catalytically destroy ozone.