 
			 
			MCQOPTIONS
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				| 1. | AMMONIA_OR_AMMONIUM_IS_OXIDIZED_TO_NITRITE_FOLLOWED_BY_THE_OXIDATION_OF_NITRITE_TO_NITRATE_IS_CALLED_AS?$ | 
| A. | Nitrogen fixation | 
| B. | Nitrification | 
| C. | Denitrification | 
| D. | Nitrogen assimilation | 
| Answer» C. Denitrification | |