Question

what is crust?????????​

Answer 1

Answer:

“Crust” describes the outermost shell of a terrestrial planet.

Answer 2

In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.