Multiple Choice
Why is the average elevation of the continents higher than the average elevation of the seafloor?
A) because melting of large ice caps has caused isostatic rebound of the continents
B) because oceanic crust is composed of denser rocks than the continental crust
C) because the continents are supported by upwelling mantle currents
D) because subduction pulls down the seafloor
Correct Answer:
Verified
Correct Answer:
Verified
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