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A Scientist Identifies a Rock Sample as Basalt

Question 14

Multiple Choice

A scientist identifies a rock sample as basalt. Why did he do so?


A) He observed that the rock has a lot of silica, making it mafic.
B) He observed that the rock has a lot of silica, making it ultra-mafic.
C) He observed that the sample has little silica, making it felsic.
D) He observed that the sample has little silica, making it mafic.

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