everyday science MCQ #5339

Depletion of the ozone layer is caused by:

everyday science MCQ #5339

  1. Question 1

    Q1. Depletion of the ozone layer is caused by:

    • A) Ferrocene
    • B) Fullerenes
    • C) Freons
    • D) Polyhalogens

    Answer: Freons

    Explanation: Freons (chlorofluorocarbons, CFCs) release chlorine atoms in the stratosphere that catalytically destroy ozone molecules, thinning the protective ozone layer.