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.
Biofuel is used for the same purposes as fossil fuels such as oil. It can not only power cars and lorries but can also be used to heat homes and fuel industry. Biofuels can be used to generate electricity. Biofuels can be used to replace fossil fuels.