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| Q. |
What is the mixture of methane and carbon-dioxide of anaerobic digestion called? |
| A. | waste gases |
| B. | poisonous gas |
| C. | biogas |
| D. | carbo-methane |
| Answer» C. biogas | |
| Explanation: the mixture of methane and carbon-dioxide of an anaerobic digestion is called biogas. over time, anaerobic bacteria and micro-organisms start to digest the settled sludge anaerobically, transforming it into co2 and ch4 and some heat. | |
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