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Biology 13 Online
OpenStudy (anonymous):

__________ is the tendency to break along flat surfaces. A. streak B. cleavage C. luster D. hardness ____________ and _____________ are in all silicate minerals. A. silicon and oxygen B. silicon and iron C. silicon and gold D. silicon and hydrogen

OpenStudy (anonymous):

1.) B cleavage 2.) A silicon and oxygen

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

no prob

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