write composition of biogas
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1. Methane (CH 4) 50–75%
2.Carbon dioxide (CO 2) 25–50%
3.Nitrogen (N 2) 0–10%
4.Hydrogen(H 2) 0–1%
2.Carbon dioxide (CO 2) 25–50%
3.Nitrogen (N 2) 0–10%
4.Hydrogen(H 2) 0–1%
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