Aphanitic, phaneritic, and porphyritic are terms that indicate ____, respectively

A)fine-grained, course-grained, and mixed grained crystal sizes
B)formation by fast cooling, slow cooling, and mixed cooling rates
C)plutonic, volcanic, and mixed plutonic-volcanic origins
D)course-grained, fine grained, and mixed grained crystal sizes
E)Mixed-grain, course-grained, and fine-grained crystal sizes


A

Environmental & Atmospheric Sciences

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a. True b. False

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