MCQOPTIONS
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| 1. |
Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere in future? |
| A. | Atomic warfare |
| B. | Co2 from fossil fuels |
| C. | Dust clouds from valcanoes |
| D. | Depletion of earth's ozone layer |
| Answer» C. Dust clouds from valcanoes | |