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​Ozone layer is responsible for preventing harmful UV rays to enter the earth's atmosphere. Which of the hydrocarbons is/are not responsible for deple
Question

Ozone layer is responsible for preventing harmful UV rays to enter the earth's atmosphere. Which of the hydrocarbons is/are not responsible for depletion of the ozone layer?

A.

Asphalt


B.

Propellants


C.

Refrigerants


D.

Foam-blowing agents

Correct option is A

The correct answer is (A) Asphalt.

Explanation:Asphalt does not deplete the ozone layer. Propellants, refrigerants, and foam-blowing agents contain harmful chemicals like CFCs that contribute to ozone depletion.

Incorrect Options Explanations:

  • Propellants: Contain CFCs that harm the ozone layer.
  •  Refrigerants: Release CFCs/HCFCs, damaging the ozone.
  • Foam-blowing agents: Use CFCs that affect the ozone.

Information Booster:

  • Ozone layer absorbs harmful UV rays.
  • The Montreal Protocol (1987) seeks to phase out ozone-depleting substances.

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