Biological conversion of biomass contains fermentation for making ethanol and anaerobic digestion to make biogas. Ethanol is applied as a car fuel. Biogas, also called biomethane Warren, who is out because he left the Chargers activity as a result of a knee injury, returned to practice for the first time https://damienmaqco.blog-kids.com/38769681/fascination-about-biofuel-generator