MCQOPTIONS
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| 1. |
Denitrification is |
| A. | reduction of nitrate (NO3-) to nitrogen gas |
| B. | reduction of nitrate to organic nitrogen compounds |
| C. | both (a) and (b) |
| D. | changing of atmospheric nitrogen (N2) to nitrogen compounds |
| Answer» D. changing of atmospheric nitrogen (N2) to nitrogen compounds | |