Chemistry
A decrease in the amount of ozone in the stratosphere is called depletion of ozone and it is caused by :
- UV radiations of the sun
- excessive use of detergents
- burning coal and wood
- Use of CFC compounds
Pollution
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Answer
Use of CFC compounds
Reason — Chlorofluorocarbons (CFCs) entering the atmosphere cause ozone layer depletion.
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Related Questions
Excessive release of carbon dioxide in the atmosphere is the cause of :
- depletion of ozone
- formation of polar vortex
- global warming
- formation of smog
Inhalation of air polluted with carbon monoxide is dangerous because :
- CO combines with O2 dissolved in the blood.
- CO combines with haemoglobin of blood.
- CO removes water from the body and causes dehydration.
- CO causes coagulation of proteins in the body.
Which is not a greenhouse gas ?
- Carbon monoxide
- Methane
- Nitrous oxide
- Carbon dioxide
The acid which is not responsible for acid rain is :
- Formic acid
- Carbonic acid
- Sulphuric acid
- Nitric acid