Explain the use of carbon dating
Volcanoes spew out CO which could just as effectively decrease the ratio.Specimens which lived and died during a period of intense volcanism would appear older than they really are if they were dated using this technique.The rate at which C atoms, half of them will decay in 5730 years.Since this rate is slow relative to the movement of carbon through food chains (from plants to animals to bacteria) all carbon in biomass at earth's surface contains atmospheric levels of C is present at atmospheric levels, the molecule must derive from a recent plant product.
However, there is strong evidence which suggests that radioactive decay may have been greatly accelerated in the unobservable past.
It takes about 5,730 years for half of a sample of radiocarbon to decay back into nitrogen.
It takes another 5,730 for half of the remainder to decay, and then another 5,730 for half of what's left then to decay and so on.
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This is how carbon dating works: Carbon is a naturally abundant element found in the atmosphere, in the earth, in the oceans, and in every living creature.
Search for explain the use of carbon dating:
C-12 is by far the most common isotope, while only about one in a trillion carbon atoms is C-14.