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The carbon-14 decays with its half-life of 5,700 years, while the amount of carbon-12 remains constant in the sample.

And the result of this accepted method dates dinosaur fossils to around 68 million years old. Its half-life ($t_$) is only 5,730 years—that is, every 5,730 years, half of it decays away.

What would happen if a dinosaur bone were carbon dated?

- At Oak Ridge National Laboratory, Scientists dated dinosaur bones using the Carbon dating method.

A child mummy is found high in the Andes and the archaeologist says the child lived more than 2,000 years ago.

How do scientists know how old an object or human remains are?




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