MCQOPTIONS
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| 1. |
WHILE_DESIGNING_THE_AERATED_LAGOON_WHAT_IS_THE_SOLID_RETENTION_TIME_CONSIDERED??$ |
| A. | 7-8 days |
| B. | 3-6 days |
| C. | 1-2 days |
| D. | 10 days |
| Answer» C. 1-2 days | |