| − | A biomass gas is a medium [[Btu]] gas containing [[methane]] and [[carbon dioxide]], resulting from the action of microorganisms on organic materials such as a landfill. It is well known for its repulsive odor. | + | A '''biomass gas''' is a medium [[Btu]] gas containing [[methane]] and [[carbon dioxide]], resulting from the action of microorganisms on organic materials such as a landfill. It is well known for its repulsive odor. |