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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