(Definition of âallotâ from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press) allot in American English See all translations
Fossil fuel s-fuels derived from the remains of dead organisms. Examples include coal, oil, oil shales, tar sands, natural gas, and peat. Hydrocarbon s are molecules that incorporate both carbon and hydrogen. When hydrocarbon molecules are exposed to heat, the bonds linking the carbon and hydrogen atoms break.
These forms of energy can be used to generate other forms of energy, such as motion or electricity. The process of burning a fuel is called combustion. Most of the energy used today comes from fossil fuels. Fossil fuels are the energy-rich substances formed from the remains of once-living organisms.Layers of sand, rock, and mud buried the dead organisms. Over millions of years, heat and pressure changed the materials into fossil fuels. The three major fossil fuels are coal, oil, and natural gas.ost of the energy used today comes from fossil fuels. Fossil fuels are the energy-rich substances formed from the remains of once-living organisms. Layers of sand, rock, and mud buried the dead organisms.