MCQOPTIONS
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| 1. |
Until the current warming trend exceeds the range of normal climatic fluctuations, there will be, among scientists, considerable__the possibility that increasing levels of atmospheric CO2 can cause long - term warming effects. |
| A. | Interest in |
| B. | Uncertainty about |
| C. | Enthusiasm |
| D. | Worry about |
| Answer» C. Enthusiasm | |