Why is radioactive decay used to determine the absolute age of rocks?
A)Radioactive decay cannot be used to determine the age of a rock.
B)Radioactive decay happens very quickly.
C)Radioactive decay does not happen at a constant rate.
D)Radioactive decay happens at a relatively constant rate.
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Answer:
D)Radioactive decay happens at a relatively constant rate.
Explanation:
The nuclear decay of radioactive isotopes is a process that behaves in a clock-like fashion and is thus a useful tool for determining the absolute age of rocks. ... Rates of radioactive decay are constant and measured in terms of half-life, the time it takes half of a parent isotope to decay into a stable daughter isotope.
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