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Question
What is the key cause of ozone layer depletion?
Options
Burning coal
Use of chlorofluorocarbons (CFCs)
Eutrophication
Heavy machinery noise
MCQ
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Solution
Use of chlorofluorocarbons (CFCs)
Explanation:
The key cause of ozone layer depletion is the use of chlorofluorocarbons (CFCs). These chemicals degrade the ozone molecules in the stratosphere, causing the ozone layer to weaken, thereby protecting the Earth from damaging ultraviolet light.
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