Which is a method of relative dating?

A.

examining historical records to determine when a volcano erupted

B.

using fossils to determine the oldest rock layer in a canyon

C.

measuring the depth of tree bark

D.

using radioactive isotopes to calculate the age of a rock

I think that it's b.

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3. 👁 162

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2. yes, the answer is B. Relative dating is used on objects without radioactive isotopes

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posted by michael
3. i think itg is c. :)

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posted by bianca
4. i actulay think it is b. :)

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posted by bianca
5. Defenitly B!

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posted by Ala

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