How is the age of fossils calculated?

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(B) The age of fossils is primarily determined using $Radio-carbon$ dating (also known as $Carbon-14$ dating). This method measures the decay of the r

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Radio-carbon dating

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(B) The age of fossils is primarily determined using $Radio-carbon$ dating (also known as $Carbon-14$ dating). This method measures the decay of the radioactive isotope $Carbon-14$ present in organic matter. Since $Carbon-14$ decays at a known constant rate,scientists can calculate how long ago an organism died by comparing the remaining amount of $Carbon-14$ to the stable isotope $Carbon-12$.

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