Question

what is earth crust​

Answer 1

Explanation:

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.

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Answer 2

Answer:

In geology, a crust is the outermost layer of the earth. The crust of the earth is composed of a geart variety of igneous, metamorphic and sedimentary rocks. The crust is underlain by the mentle.