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Health Sciences 16 Online
OpenStudy (anonymous):

Coal is made from the remains of dead plants. It is made of carbon and other elements. Is coal a mineral? A Yes, because it is formed naturally. B Yes, because it contains carbon. C No, because it is created artificially. D No, because it is an organic substance.

OpenStudy (anonymous):

It's classified as an organic sedimentary rock, but rocks are combinations of minerals, and minerals are inorganic. Coal is made of decomposed plants, which are organic. ~ Wikipedia.

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