MCQOPTIONS
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| 1. |
The two main gases liberated from an anaerobic sludge digestion tank would include: |
| A. | NH3 and CO2 |
| B. | CO2 and CH4 |
| C. | CH4 and H2S |
| D. | NH3 and CH4 |
| Answer» C. CH4 and H2S | |