A lactic acid test is a blood test that measures the level of lactic acid made in the body. Most of it is made by muscle tissue and red blood cells.
A biofuel is a fuel that is produced through contemporary biological processes, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of fossil fuels, such as coal and petroleum, from prehistoric biological matter.
Biofuels. Biofuels are solid, liquid or gas fuels made from recently-harvested biological material (biomass). Most biofuel is derived from plants, either crops grown specifically for fuel use or material left over from plants harvested for other uses.iofuels. Biofuels are solid, liquid or gas fuels made from recently-harvested biological material (biomass). Most biofuel is derived from plants, either crops grown specifically for fuel use or material left over from plants harvested for other uses.