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Biology 21 Online
OpenStudy (jackky):

how does the color of a rock indicate how much silica is present?

OpenStudy (abhisar):

Hey there! You probably didn't notice but you posted your Earth Science question in Biology section. Please post your questions in relevant sections, in this way you'll also get help faster. Posting questions in irrelevant sections is considered as spamming. Thank you.

OpenStudy (jackky):

thank you

OpenStudy (abhisar):

Your most welcome :)

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