MCQOPTIONS
Saved Bookmarks
| 1. |
Acid Rain is caused due to the presence of the folloiwng gases in the air? |
| A. | N2 and O3 |
| B. | NH3 and Cl2 |
| C. | SO2 and NO2 |
| D. | O3 and N2 |
| Answer» D. O3 and N2 | |