MCQOPTIONS
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MCQOPTIONS
| 1. |
When the BOD of wastewater increases, then?Figure: Oxygen sag curve |
| A. | Rate of reaeration decreases |
| B. | Rate of oxygen deficit increases |
| C. | Rate of oxygen deficit decreases |
| D. | Amount of oxygen in wastewater increases |
| Answer» C. Rate of oxygen deficit decreases | |