MCQOPTIONS
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| 1. |
_ The phenolic compounds in public water supply should not be more than$? |
| A. | 0.1 ppm |
| B. | 0.01 ppm |
| C. | 0.001 ppm |
| D. | 0.0001 ppm |
| Answer» D. 0.0001 ppm | |