MCQOPTIONS
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| 1. |
Which of the following atmospheric gases constitute greenhouse gases?_x000D_ 1. Carbon dioxide_x000D_ 2. Nitrogen_x000D_ 3. Nitrous oxide_x000D_ 4. Water vapour_x000D_ Select the correct answer using the codes given below: |
| A. | 1 and 4 |
| B. | 1 and 3 |
| C. | 1, 2 and 4 |
| D. | 1, 3 and 4 |
| Answer» E. | |