biomass environmental science ap energy renewable

Biomass It is any organic matter; wood, crops, seaweed, animal wastes It?s one of our oldest energy sources People have always used wood for heat and cooking It gets its energy from the sun through photosynthesis. It is a renewable resource There are three main types that we used today. Wood and agriculture products Wood accounts for 46% of biomass energy Other sources are fruit pits and corn cobs Many wood using companies are seeing the benefit of using scraps for power Saves money Reduces wastes Pulp and paper mills use biomass to meet 63% of their energy needs Solid wastes Burning trash 1 ton of garbage contains as much heat energy as 500 pounds of coal Reduces amount of trash dumped into landfills by 60-90% Landfill gas and biogas