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Q. |
Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? |
A. | Chlorofluorocarbons |
B. | Nitrous oxide |
C. | Sulphur dioxide |
D. | Carbon dioxide |
Answer» A. Chlorofluorocarbons | |
Explanation: Chlorofluorocarbon contributes to ozone depletion in the upper atmosphere. It is an organic compound that contains only carbon, chlorine, and fluorine, produced as a volatile derivative of methane, ethane, propane. Its manufacture has been phased out under the Montreal Protocol. |
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