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Pick up the incorrect statement from the following?
Civil Engineeringmedium
AThe process of decomposing the organic matter under controlled anaerobic conditions, is called sludge digestion
BSludge digestion is carried out in sludge tank
The gases produced in sludge digestion process, contain 75% carbon dioxide
DThe gases produced in sludge digestion process, contain 75% methane
Correct Answer: C. The gases produced in sludge digestion process, contain 75% carbon dioxide
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