Question

define crust?
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Answer 1

Answer:

Earth's Crust. “Crust” describes the outermost shell of a terrestrial planet. ... Earth has three layers: the crust, the mantle, and the core. The crust is made of solid rocks and minerals. Beneath the crust is the mantle, which is also mostly solid rocks and minerals, but punctuated by malleable areas of semi-solid magma.

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Answer 2

Answer:

the uppermost layer over the earth's surface is called the crust