MCQOPTIONS
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| 1. |
CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. |
| A. | 10² |
| B. | 10⁵ |
| C. | 10⁹ |
| D. | 10¹⁵ |
| Answer» C. 10⁹ | |