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Biology 12 Online
OpenStudy (anonymous):

if horizontal layers of sedimentary rock have a vertical fault running through them how might a geologist use relative dating to determine when the fault occured? could he use absolute dating as well? why or why not a sample of radioactive element has a mass of 80 g. how much parent and daughter material are in the sample after two half lives

OpenStudy (anonymous):

please help!!!!!!!!

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