MCQ
Ozone hole means:
  • A
    Hole in the stratosphere
  • B
    Same concentration of ozone
  • Decrease in the concentration of ozone
  • D
    Increase in the concentration of ozone

Answer

Correct option: C.
Decrease in the concentration of ozone

Due to the depletion of stratospheric ozone, a seasonal hole in the ozone layer at polar regions is formed in the atmosphere. This is known as the ozone hole.
The depletion of ozone causes harmful $UV$ rays to reach the earth. $UV$ radiations are responsible for causing skin cancers and various diseases in humans.

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