Oceanic crust is mostly
A) shale.
B) basalt.
C) limestone.
D) granite.
E) coal.

Name: Oceanic crust is mostly A) shale. B) basalt. C) limestone. D) granite. E) coal.
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Question

Quizplus · Accepted Answer

Oceanic crust is mostly composed of basalt, which is an extrusive igneous rock formed from solidified lava. Shale and limestone are sedimentary rocks, and granite is an intrusive igneous rock. Coal is formed from the accumulation and preservation of plant material in sedimentary basins, but is not a component of oceanic crust.

Oceanic Crust Is Mostly