MCQOPTIONS
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| 1. |
The green house effect may increase on earth because |
| A. | The earth tills toward the sun in the summer |
| B. | Increasing carbon dioxide will trap more heat |
| C. | Too much oxygen is now given off by plants |
| D. | Decomposes essential recycling matters are being destroyed |
| Answer» C. Too much oxygen is now given off by plants | |