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Environment And Sustainable Development — Economics STD 12 Humanities & Commerce — Question

Rajasthan BoardEnglish MediumSTD 12 Humanities & CommerceEconomicsEnvironment And Sustainable Development1 Mark
Question
Why has ozone depletion taken place?
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Answer

'Ozone depletion has been caused by high levels of chlorine and bromine compounds in the stratosphere. The origin of these compounds is chlorofluorocarbons (CFCs). CFCs are used as cooling agents in air conditioners or refrigerators, or as aerosol propellants, and bromofluorocarbons (halons) used in fire extinguishers.

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