 
			 
			MCQOPTIONS
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				| 1. | ___________ means that a substance can be converted into simpler compounds by biologically mediated reactions. | 
| A. | Non-biodegradable | 
| B. | Biodegradable | 
| C. | Dilution | 
| D. | Assimilation | 
| Answer» C. Dilution | |