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Mathematics 15 Online
OpenStudy (cookiegirl):

Which characteristic is common to all minerals? A. Their chemical composition is similar. B. They are man-made. C. They have a crystalline structure. D. They are organic material.

OpenStudy (haichi):

a or c

OpenStudy (cookiegirl):

umm idk C? :/

OpenStudy (haichi):

jk it is D

OpenStudy (haichi):

just making sure ur there

OpenStudy (cookiegirl):

okay...thanks...

OpenStudy (haichi):

np

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