What is the name for partially decayed vegetable matter that is dug up and used for fuel?
Solid fuel a form of biomass, the term usually refers to other natural plant material that can be burnt for fuel. Common biomass fuels include waste wheat, straw, nut shells and other fibrous material. Peat fuel is an accumulation of partially decayed vegetation or organic matter that can be burnt once sufficiently dried. Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. Throughout history, coal has been used as an energy resource, primarily burned for the production of electricity and heat, and is also used for industrial
Vegetable oil fuel Vegetable oil fuel Vegetable oil can be used as an alternative fuel in diesel engines and in heating oil burners. When vegetable oil is used directly as a fuel, in either modified or unmodified equipment, it is referred to as straight vegetable oil (SVO) or pure plant oil (PPO). Conventional diesel engines can be modified to help ensure that the viscosity of the vegetable oil is low enough to allow proper atomization of the fuel. This prevents incomplete combustion, which would damage the engine by causing a build-up of carbon. Straight vegetable oil can also be blended with conventional diesel