Biogas comprises mainly of
(a) 60% oxygen and 40% carbon dioxide (b) 60% oxygen and 40% methane (c) 60% methane and 40% oxygen (d) 60% methane and rest carbon dioxide
(a) 60% oxygen and 40% carbon dioxide (b) 60% oxygen and 40% methane (c) 60% methane and 40% oxygen (d) 60% methane and rest carbon dioxide