Plants and algae use solar energy and transform carbon dioxide (CO2) from the atmosphere into their biomass (also called primary biomass). Human beings have converted biomass into energy for centuries. For example, burning biomass in the form of wood is the oldest form of such conversion. Biomass can also be converted into other energy sources or fuels—for example, through fermentation to alcohols (ethanol or butanol) or biogas and through gasification to a substitute for natural gas. In... więcej

Salem Press Encyclopedia, 2023. 2p.