Question
Stratosphere:

Answer

  1. Beyond the troposphere, up to a height of about 50 km from the earth is the layer called the stratosphere.
  2. In the lower part of the stratosphere, there is a layer of gas called ozone.
  3. Ultraviolet rays coming from the sun are harmful for living things.
  4. But the ozone layer absorbs them and protects the living world from those rays.

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