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Radioactive isotopes are used to a. determine the absolute age of rocks. c. determine how rocks are formed. b. determine the relative age of rocks. d. determine how rocks are changed. Please select the best answer from the choices provided A B C D

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Hello Mr1guy24 

Question: Radioactive isotopes are used to?

Answer: Determine the absolute age of rocks (A)

Reason: If we want to know the absolute age of rocks, then we use radioactive isotopes to find this out.

Hope This Helps!
-Chris
babzgurl11

The answer is A: Radioactive isotopes are used.

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