There are a few reasons to believe this assumption is erroneous.The industrial revolution greatly increased the amount of carbon-12 released into the atmosphere through the burning of coal.are automatically placed based on the content of the page in which they appear.We do not have the option of choosing which ads appear on the site.Plants utilize, or breath in carbon dioxide, then ultimately release oxygen for animals to inhale.The carbon-14 dioxide is utilized by plants in the same way normal carbon dioxide is.The water in these subterranean chambers would not have contained carbon-14, as the water was shielded from cosmic radiation.
First, for carbon-14 dating to be accurate, one must assume the rate of decay of carbon-14 has remained constant over the years.
As with any radioactive isotope, carbon-14 decays over time.
The half-life of carbon 14 is approximate 5,730 years.
However, evidence indicates that the opposite is true.
Experiments have been performed using the radioactive isotopes of uranium-238 and iron-57, and have shown that rates can and do vary.
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