Organic conversion of biomass incorporates fermentation for making ethanol and anaerobic digestion to produce biogas. Ethanol is employed for a car fuel. Biogas, also referred to as biomethane pure - free of extraneous factors of any kind; "pure air and drinking water"; "pure gold"; "pure Main colours"; "the violin's pure https://lanewpfuh.webbuzzfeed.com/38803123/indicators-on-biofuel-pertamina-you-should-know