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Health Sciences 17 Online
OpenStudy (anonymous):

What evidence is used to determine the age of rock by relative and absolute dating methods? A. Relative dating uses half-lives of radioisotopes, while absolute dating uses layering order and fossils. B. Relative dating uses fossils and layering order, while absolute dating uses half-lives of radioisotopes. C. Relative dating uses isotopes and fossils, while absolute dating uses layering order. D. Relative dating uses layering order and isotopes, while absolute dating uses fossils.

OpenStudy (anonymous):

the answer is B took the test

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