Biogas contains about methane. (a) 55% to 60% (b) 20% to 25% (c) 90 – InterviewSolution

1.	Biogas contains about methane. (a) 55% to 60% (b) 20% to 25% (c) 90% to 95% (d) 40% to 45%
Answer» Correct option is: (a) 55% to 60%

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