MCQOPTIONS
Saved Bookmarks
| 1. |
Which of the following can interrupt the cycles of different atmospheric gases? |
| A. | Large scale deforestation |
| B. | Excessive burning of fuels |
| C. | Breathing by animals |
| D. | Both [a] and [b] |
| E. | None of these |
| Answer» E. None of these | |