MCQOPTIONS
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| 1. |
Estimated quantity of global water is __________which covers about 70% of earth? |
| A. | 1.30x109km3 |
| B. | 1.32x109km3 |
| C. | 1.33x109km3 |
| D. | 1.35x109km3 |
| Answer» E. | |