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Which of the following is true about rocks? A. rocks are composed of only one mineral. B. Rocks do not contain any nonmineral matter. C. coal is not considered a true rock. D. most rocks are a mixture
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Which of the following is true about rocks?

A. rocks are composed of only one mineral.
B. Rocks do not contain any nonmineral matter.
C. coal is not considered a true rock.
D. most rocks are a mixture of minerals.

User Gmr
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D. Most rocks are a mixture of minerals. They can vary on the types of minerals, like crystals.
User Connor Smith
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