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The crust alone contains millions of different layers of sedimentary rock. For the layers of the Earth, some of which are rock and some of which are not, see the related link below.

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14y ago
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14y ago

Chemically, there are two main layers of rock, the crust and the mantle. The outer core is liquid, and the inner core is an alloy of iron and nickel. See the link to a related answer below.

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13y ago

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Q: How many layers are there in the earth's crust?
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