Getting It Across
Explain that biomass energy comes from organic matter, such as agricultural and animal wastes, or from methane gas produced from decay in landfills. Like fossil fuels, biomass can be burned to create energy in the form of electricity, heat, steam, and fuels. It can also be converted to methane gas and used for fuel. The process taking place inside the sealed bag is anaerobic digestion, which has methane gas as one of its by-products, so it resembles a form of biomass energy. If this bag were at a biomass power plant, the odorous gas inside the bag would be used to heat water into steam to turn a turbine!