MCQOPTIONS
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| 1. |
The presence of which one of the following was absolutely essential for the development of the first life forms? |
| A. | Heat produced by a planet whose surface was still warm. |
| B. | A reducing atmosphere. |
| C. | Volcanoes spewing forth various gases. |
| D. | UV light. |
| Answer» C. Volcanoes spewing forth various gases. | |