(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.
Examples of such exceptional preservation include fossils in concretions, such as those in the Mazon Creek deposit in Illinois. Since rapid burial in sediment is important for the formation of fossils, most fossils form in marine environments, where sediments are more likely to accumulate.he âsoftâ tissues of an organism, such as skin, muscles, and internal organs are typically not preserved as fossils. Exceptions to this rule occur when conditions favor rapid burial and mineralization or very slow decay.