MCQOPTIONS
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| 1. |
The relative contributions of carbon dioxide (CO2), nitrous oxide (N2O), chlorofluorocarbons (CFCs) and methane (CH4) towards global warming are |
| A. | CO2 > CFCs > CH4 > N2O |
| B. | CO2 > CH4 > CFCs > N2O |
| C. | CO2 > CH4 > N2O > CFCs |
| D. | CO2 > N2O > CH4 > CFCs |
| Answer» D. CO2 > N2O > CH4 > CFCs | |