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| Q. |
Which one of the following is not a 'green house gas'? |
| A. | Chlorofluorocarbons |
| B. | Methane |
| C. | Carbon dioxide |
| D. | Nitrogen |
| Answer» D. Nitrogen | |
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Explanation: The primary greenhouse gases in the Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone. The anthropogenic compound of Chlorofluorocarbons is also a greenhouse gas, with a much higher potential to enhance the greenhouse effect than CO2. |
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