How do we determine the age of fossil?
The correct answer is option D (C12 isotopes changes into C14 in fixed time).
Relative dating is used to determine a fossils approximate age by comparing it to a similar rock and with different fossils of known age. Whereas, absolute dating is used to determine a precise age of a fossil and radiometric dating is used to measure the decay of isotopes within the fossil or the rocks associated with it.
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