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Ozone layer of upper atmosphere is being destroyed by:A. CholorifluorocarbonB. `SO_(2)`C. Photochemical oxidant`//O_(2)` and `CO_(2)`D. smog |
Answer» Correct Answer - A Chloroflurocarbons (CFCs) comes in contact with atmospheric gases and evertually reach stratosphere where they cause depletion in ozone layer. `{:(CF_(2)Cl_(2)(g) overset(UV)toCoverset(●)(l)(g)+overset(●)(C)F_(2) Cl(g),),(overset(●)(C)l+O_(3)to Cloverset(●)(O) (g)+O_(2)(g),),(Cloverset(●)(O)(g) tooverset(●)(Cl) (g)+O_(2)(g)):}` |
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