Oceanic crust is generally how compared to continental crust?

Correct answer: Thinner and denser

Oceanic crust is the thinner and denser of the two main kinds of Earth’s crust. It lies beneath the oceans and is usually made largely of dark, iron- and magnesium-rich basaltic rocks. Continental crust is generally thicker and less dense, and it contains more silica-rich rocks such as granite. Because oceanic crust has greater density, it tends to lie at a lower level than continental crust, helping to form ocean basins. The words “thin” and “dense” are therefore the key features to remember.

Choice B is correct because it states both of these general properties: oceanic crust is thinner and denser than continental crust. Choice A reverses both comparisons. Choice C is incorrect because the crust is solid rock, not gas. Choice D is also incorrect because oceanic crust is not only granitic; basalt is its characteristic rock type, whereas granite is more typical of continental crust. These are general comparisons, not absolute claims for every small region.