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The same is true of any creature that gets its carbon by eating such plants.Suppose such a creature dies, and the body is preserved.The C14 will undergo radioactive decay, and after 5730 years, half of it will be gone.So, if we find such a body, the amount of C14 in it will tell us how long ago it was alive.Native American Weaponry was used by Native Americans to hunt and to do battle with other Native American tribes.
It is produced in the upper atmosphere by radiation from the sun.(Specifically, neutrons hit nitrogen-14 atoms and transmute them to carbon.) Land plants, such as trees, get their carbon from carbon dioxide in the air.
Anything that was once living can be dated using a chemical process called carbon dating.
Archaeologists have studied hundreds of thousands of clues from thousands of ancient archaeological sites across Missouri.
That causes a dating problem with any animal that eats seafood.
After about ten half-lives, there's very little C14 left.