MCQOPTIONS
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| 1. |
Relative contribution of various green house gases to total global warming in ascending order is: |
| A. | CO2 > CFC > CH4 > NO2 |
| B. | CO2 > CH4 > CFC > NO2 |
| C. | CH4 > CFC > CO2 > NO2 |
| D. | CFC > CH4 > CO2 > NO2 |
| Answer» C. CH4 > CFC > CO2 > NO2 | |