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What gases are produced in anaerobic slu...

What gases are produced in anaerobic sludge digestres

A

Methane and `CO_(2)` only

B

Hydrogen sulphide and `CO_(2)`

C

Methane, hydrogen sulphide and `O_(2)`

D

Methane, hydrogen sulphide and `CO_(2)`

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The correct Answer is:
D
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