Multiple choice

What is the function of the ozone layer?

  1. removes pollution from the atmosphere

  2. protects Earth from the sun's heat

  3. shields Earth from harmful solar radiation

  4. provides the oxygen needed by human life

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

The ozone layer in the stratosphere absorbs the majority of the sun's ultraviolet (UV) radiation. This protection is vital for life on Earth, as excessive UV exposure causes skin cancer and other biological damage.