What type of crust is made of basalt lavas that flow onto the seafloor?

What type of crust is made of basalt lavas that flow onto the seafloor?

Correct Answer: oceanic
warm
exotic
endotopic

Explanation: There are two kinds of crust. Oceanic crust is made of basalt lavas that flow onto the seafloor. It is relatively thin, between 5 to 12 kilometers thick (3 - 8 miles). The rocks of the oceanic crust are denser (3.0 g/cm 3 ) than the rocks that make up the continents. Thick layers of mud cover much of the ocean floor.

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