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Q. The composition of biogas is
A. 25% methane and 75% carbon dioxide
B. 75% methane and 25% carbon dioxide
C. 25% methane and 75% hydrogen sulphide
D. 75% methane and 25% hydrogen sulphide
Answer: B
A. 25% methane and 75% carbon dioxide
B. 75% methane and 25% carbon dioxide
C. 25% methane and 75% hydrogen sulphide
D. 75% methane and 25% hydrogen sulphide
Answer: B
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