Analysis of information sources in references of the Wikipedia article "Biogas" in Indonesian language version.
(...) Raw biogas contains about 55–65% methane (CH4), 30–45% carbon dioxide (CO2), traces of hydrogen sulphide (H,S), and fractions of water vapour.
Biogas is a renewable energy source
Typically, the biogas is composed of methane, carbon dioxide, and other impurities.
Biogas is a renewable energy source
(...) Raw biogas contains about 55–65% methane (CH4), 30–45% carbon dioxide (CO2), traces of hydrogen sulphide (H,S), and fractions of water vapour.
Typically, the biogas is composed of methane, carbon dioxide, and other impurities.