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OpenStudy (kitten_is_back):
Scientists were able to determine the age of the moon through analyzing rock samples that were collected. What technique did they use? A. evaluating eras and periods B. reviewing fossils C. studying geology D. radiometric dating
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OpenStudy (hysusonic):
which ones can you cross out?
OpenStudy (kitten_is_back):
cad
OpenStudy (hysusonic):
not d
OpenStudy (kitten_is_back):
a c b
OpenStudy (hysusonic):
yup ;)
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