What specifically describes the balance between the lithosphere floating atop the asthenosphere?
a. Buoyancy
b. Isostatic equilibrium
c. Density stratification
d. Compensation
ANS: B
The height of the continental crust is dependent upon the depth and the size of the portion that is in the
asthenosphere. Erosion can have an effect on the isostatic equilibrium because it is connected to mass
and density. Information can be found in the section Earth's Inner Structure Was Gradually Revealed.
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