Which factor is the most accurate in determining the absolute age of two rocks?

a. the presence of unconformities

b. comparing fossils in the layers

c. vertical position

d. radioactive dating of each layer

Radioactive dating, depending on the certain amount of radioactive decay it leaves through the years you can predict the oldest one!

Answer/Explanation:

D.  radioactive dating of each layer which uses the predictable decaying of atoms to tell the age of an object.

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