MCQOPTIONS
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| 1. |
The carbon cycle is based on what? |
| A. | CO |
| B. | CO<sub>2</sub> |
| C. | C<sub>6</sub>H<sub>12</sub>O<sub>6</sub> |
| D. | CO<sub>3</sub> |
| Answer» C. C<sub>6</sub>H<sub>12</sub>O<sub>6</sub> | |