Which of the following is true about rocks? a. Rocks are composed of only one mineral. b. Most rocks are a mixture of minerals. c. Coal is not considered a true rock. d. Rocks do not contain any nonmineral matter.
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Home » Biology » Which of the following is true about rocks? a. Rocks are composed of only one mineral. b. Most rocks are a mixture of minerals. c. Coal is not considered a true rock. d. Rocks do not contain any nonmineral matter.