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Biology 22 Online
OpenStudy (anonymous):

Although coal is sometimes considered a mineral, which criteria of minerals does it violate? A. Minerals are solids. B. Minerals are natural. C. Minerals are inorganic. D. Minerals have a definite chemical composition.

OpenStudy (anonymous):

C. Coal is organic.

OpenStudy (hanah):

coal is organic

OpenStudy (anonymous):

d is incorrect

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