Question

What is the key cause of ozone layer depletion?

पर्याय

• Burning coal

• Use of chlorofluorocarbons (CFCs)

• Eutrophication

• Heavy machinery noise

Answer 1

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.