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  1. What is the ozone layer?
  2. State its importance.

Asked by Topperlearning User 23rd April 2015, 1:54 PM
Answered by Expert
Answer:
  1. The ozone layer is present in the stratosphere and extends from 20 -50 km above the Earth’s surface.
  2. It absorbs the harmful ultra violet rays of the Sun and prevents them from reaching the surface of the Earth. Without the ozone layer, the Sun’s rays could cause skin cancer, cataract etc.
Answered by Expert 23rd April 2015, 3:54 PM
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