 
			 
			MCQOPTIONS
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				| 1. | What is the ratio of VSS/TSS in ppm obtained when partially mixed lagoons treatment are carried out facultatively? | 
| A. | 20-30 | 
| B. | 40-50 | 
| C. | 50-80 | 
| D. | 80-100 | 
| Answer» D. 80-100 | |