MCQOPTIONS
Saved Bookmarks
| 1. |
Gases commonly referred as greenhouse gases are : 1. 2. 3. CFC 4. Which of the above is/are correct? |
| A. | 1 and 4 |
| B. | 2 and 3 |
| C. | 1, 2 and 3 |
| D. | 1, 2, 3 and 4 |
| Answer» D. 1, 2, 3 and 4 | |