

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 | |