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What Is the Composition of Earth's Crust

Question 47

Multiple Choice

What is the composition of Earth's crust?


A) oceanic: basalt and gabbro; continental: felsic and mafic rocks
B) oceanic: basalt; continental: felsic
C) oceanic: felsic and mafic rocks; continental: mafic rocks
D) oceanic: mafic rocks with some gabbro; continental: felsic rocks with some basalt

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