MCQ
Ozone layer is disturbed by :
- ALarge number of factories.
- ✓Supersonic jets.
- CLarge number of automobiles.
- DNone of these.
✓
Answer
Correct option: B.
Supersonic jets.
Ozone is a form of a blanket covering the upper atmosphere which protects the earth from harmful ultraviolet rays. Because of ozone depletion, these rays can now reach the earth through hole which was previously protected by ozone blanket. The various causes of ozone depletion are as follows :
Huge combustion of fossil fuel and organic matter.
Excessive use of nitrogenous fertilizers.
supersonic rockets and space shutters.
Nuclear test.
Excessive use of chlorofluorocarbons.
Huge combustion of fossil fuel and organic matter.
Excessive use of nitrogenous fertilizers.
supersonic rockets and space shutters.
Nuclear test.
Excessive use of chlorofluorocarbons.
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