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.
1 First-generation biofuels are made from food crops (seeds or grains) or animal feedstocks. 2  Crops such as corn, soy, palm, and sugarcane have sugars, starches, and oils that can be transformed into biofuels. 3  Examples: ethanol, biodiesel, biogas (e.g., methane). First-generation biofuels are made from food crops (seeds or grains) or animal feedstocks. 2  Crops such as corn, soy, palm, and sugarcane have sugars, starches, and oils that can be transformed into biofuels. 3  Examples: ethanol, biodiesel, biogas (e.g., methane).