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Q.

Which of the following depletes the Ozone layer?

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a

Chlorofluorocarbons

b

Oxygen

c

Nitrogen

d

Hydrogen

answer is A.

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Detailed Solution

  • The ozone layer is a thin part of Earth's atmosphere that absorbs almost all of the sun's harmful ultraviolet light.
  • Manufactured chemicals, halocarbon refrigerants, solvents, propellants, foam-blowing agents, chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons) are the main causes of ozone depletion and the ozone hole.
  • These substances are also known as ozone-depleting substances (ODS).
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