| http://www.w3.org/ns/prov#value | - IUSES ??? transport handbookSpecific information related to biogas, biodiesel, bio ethanol and bio methanol.Biogas is a fuel gas produced from biomass.Biogas produced by anaerobic fermentation of manure,municipal waste or energy crops, contains 30-60% meth-ane and the rest is mainly carbon dioxide.
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