a carbon-12 and carbon-10
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7. which two substances do geologists use in radiocarbon dating?
a carbon-12 and carbon-10
ob carbon-14 and carbon-12
c lead-206 and carbon-14
d carbon-14 and uranium-238
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7. which two substances do geologists use in radiocarbon dating?
a carbon-12 and carbon-10
a carbon-12 and carbon-10
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