Carbon dating half
By comparing how much carbon-14 there is in the dead organism with the amount in a living one, the age of the dead organism can be estimated.
The half-life of uranium-238 is 4500 million years.
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Scientists use a technique called radiometric dating to estimate the ages of rocks, fossils, and the earth.
Note that, contrary to a popular misconception, carbon dating is not used to date rocks at millions of years old.
So we should never think it necessary to modify His Word.
Genesis 1 defines the days of creation to be literal days (a number with the word “day” always means a normal day in the Old Testament, and the phrase “evening and morning” further defines the days as literal days).
Plants absorb carbon dioxide from the atmosphere and animals eat plants.
This means all living things have radioactive carbon-14 in them.