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

What methods do they use and how do these methods work?

As explained below, the radiocarbon date tells us when the organism was alive (not when the material was used).

­ ­You probably have seen or read news stories about fascinating ancient artifacts.Radiocarbon dating is one of the most widely used scientific dating methods in archaeology and environmental science.It can be applied to most organic materials and spans dates from a few hundred years ago right back to about 50,000 years ago - about when modern humans were first entering Europe.These, together with many other remarkable concordances between samples from different fossils, geographic regions and stratigraphic positions make random contamination as origin of the C-14 unlikely".There is a lot of discussion about this issue on this internet, so I think this question may be worth addressing seriously.

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Visit Stack Exchange The preferred method of dating dinosaur fossils is with the radiometric dating method.

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