The oceanic crust has a density of 3.0 g/cm 3 and the continental crust has a density of 2.7 g/cm 3 , why? Explain the differences in their composition! (Hint: rock types)

The crustal surface varies in density. The oceanic crust is heavier than the continental crust. Composition, density, and thickness. Isostasy, density, and rock competence. thickness—the oceanic crust is thinner than the continental crust.

It is most likely d, asians.

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.