The category is Biofuel: Biofuel is a fuel that is produced through contemporary processes from biomass, rather than a fuel produced by the very slow geological processes involved in the formation of fossil fuels, such as oil and is usually liquid or gaseous fuels, used for transportation.
Parent categories: Metallurgy, Plastics, Rubber, Chemicals & Energies
Related categories: All categories that are energy related, visitor discretion required