MCQOPTIONS
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| 1. |
The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. |
| A. | Decreases |
| B. | Increases |
| C. | Remains constant |
| D. | May increase or decrease ; depends on the chemical characteristics of polluted water |
| Answer» B. Increases | |