 
			 
			MCQOPTIONS
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				| 1. | The acetate-utilizing methanogens are responsible for | 
| A. | 20% of methane produced in a biogas reactor | 
| B. | 50% of methane produced in a biogas reactor | 
| C. | 70% of methane produced in a biogas reactor | 
| D. | 85% of methane produced in a biogas reactor | 
| Answer» D. 85% of methane produced in a biogas reactor | |