Beneath a blanket of sediments,oceanic crust is primarily composed of
A) granite.
B) basalt.
C) limestone.
D) coal.

Question

Quizplus · Accepted Answer

Oceanic crust is primarily made up of basalt, which is a type of volcanic rock that forms from the cooling and solidifying of magma or lava. This is because new oceanic crust is formed at mid-ocean ridges through volcanic activity. Granite is a type of igneous rock but is typically found in continental crust rather than oceanic crust. Limestone and coal are sedimentary rocks that may be found in certain areas, but they are not the primary composition of oceanic crust.

Beneath a Blanket of Sediments,oceanic Crust Is Primarily Composed of