Question

Which method describes an example of absolute dating?


A.


identifying index fossil in rock layers


B.


measuring the radioactive decay of isotopes within rock layers


C.


determining the horizontal sequence of rock layers


D.


determining the vertical sequence of rock layers

Answer 1

my guess is b since all the others vary to a greater degree.

Answer 2

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Answer 3

It's D because it relies of the radioactive decay of elements.When you use absolute dating you find the ratio of the original radioactive isotope, which gives you the half life of the isotope in which gives the absolute age.

Answer 4

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