Bio mass

    Biomass is simply organic matter. In others words, it is dead material that was once living. Kernels of corn, mats of algae, and stalks of sugar cane are all biomass. Before global warming related to burning fossil fuels became a major factor in determining where energy came from, the major concern was that fossil fuels, which are considered limited in supply, would run out over the next century. It was thought that if we could produce hydrocarbons another way, and quickly, then we could meet our energy demands without much problem. This leads to one of the major separating factors between a biofuel and a fossil fuel - renewability.
     A fossil fuel is not considered renewable because it takes millions of years to form and humans really can’t wait that long. Biofuel, on the other hand, comes from biomass, which can be produced year after year through sustainable farming practices. This means biomass and biofuel are renewable.