Multiple choice

Ozonosphere is the upper part of:

  1. troposphere

  2. stratosphere

  3. thermosphere

  4. atmosphere

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

The ozone layer (ozonosphere) is located in the lower portion of the stratosphere, approximately 15-35 km above Earth's surface. It contains high concentrations of ozone (O3) molecules that absorb harmful UV-B radiation from the sun.