MCQ
Ozone $-$ layer is getting depleted because of:
- AExcessive use of automobiles.
- BExcessive formation of industrial units.
- ✓Excessive use of man made compounds containing both fluorine and chlorine.
- DExcessive deforestation.
✓
Answer
Correct option: C.
Excessive use of man made compounds containing both fluorine and chlorine.
The ozone layer, also called the stratosphere, is composed of the ozone gas $(90\%$ of the total ozone in the atmosphere$)$.
The main cause of ozone depletion and the ozone hole is manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants, and foam $-$ blowing agents $($chlorofluorocarbons $\text{(CFCs)}, \text{HCFCs}$, halons$).$
The main cause of ozone depletion and the ozone hole is manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants, and foam $-$ blowing agents $($chlorofluorocarbons $\text{(CFCs)}, \text{HCFCs}$, halons$).$
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