MCQOPTIONS
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| 1. |
The greenhouse gases as per their increasing order of effectiveness are |
| A. | CO2, CH4, N2O and CFC |
| B. | CH4, CO2, N2O and CFC |
| C. | N2O, CH4, CO2 and CFC |
| D. | CFC, CH4, CO2 and N2O |
| Answer» B. CH4, CO2, N2O and CFC | |