which of the following is correct? group of answer choices the density of continental and oceanic crust is roughly even, though the density varies in both time and space. oceanic crust is less dense than continental crust and dominated by silica and aluminum. oceanic crust is denser than continental crust and dominated by silica and magnesium. continental crust is less dense than oceanic crust and dominated by silica and magnesium. continental crust is denser than oceanic crust and dominated by silica and aluminum.