Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Environment, Weather & EcologyAtmosphere
What is causing the thinning of the ozone layer?
- A.Carbon dioxide
- B.ChlorofluorocarbonsCorrect answer
- C.Sulfur dioxide
- D.Nitrogen oxides
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Practice these MCQs in the appQuick fact: The thinning of the ozone layer is primarily caused by Chlorofluorocarbons (CFCs).