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Archaeology and other human sciences use radiocarbon dating to prove or disprove theories.Over the years, carbon 14 dating has also found applications in geology, hydrology, geophysics, atmospheric science, oceanography, paleoclimatology, and even biomedicine.In this section we will explore the use of carbon dating to determine the age of fossil remains.Problem 1- Calculate the amount of C remaining in a sample .(Before It's News)Radio-carbon dating is a method of obtaining age estimates on organic materials.The word “estimates” is used because there is a significant amount of uncertainty in these measurements.Each sample type has specific problems associated with its use for dating purposes, including contamination and special environmental effects.

The time-width of an organism refers to its total growth and exchange period with the biosphere.Carbon dioxide is distributed on a worldwide basis into various atmospheric, biospheric, and hydrospheric reservoirs on a time scale much shorter than its half-life.Measurements have shown that in recent history, radiocarbon levels have remained relatively constant in most of the biosphere due to the metabolic processes in living organisms and the relatively rapid turnover of carbonates in surface ocean waters.Plants and animals assimilate carbon 14 from carbon dioxide throughout their lifetimes.When they die, they stop exchanging carbon with the biosphere and their carbon 14 content then starts to decrease at a rate determined by the law of radioactive decay.

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Fragments of charcoal, however, may have a time width that can’t be quantified.

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