MCQOPTIONS
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| 1. |
Ozone layer in upper atmosphere (stratosphere) is destroyed by or which one of the chemicals is responsible for the reduction of ozone content of atmosphere [MP PMT 1990, 2002, 04; BHU 1989, 90; CPMT 1993; KCET 2000; Pb. PMT 2000] |
| A. | Hydrochloric acid |
| B. | Photochemical smog |
| C. | Chlorofluoro carbon (CFC) |
| D. | Sulphur dioxide |
| Answer» D. Sulphur dioxide | |