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The crust is the very outer layer of Earth. When you walk on dirt or in a field, what you're walking on is the Earth's crust. The crust is mainly made up of alumino-silicates. The
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Below the surface, the Earth's interior consists of three main parts: the crust, the mantle and the core. The crust, which is most accessible for study, includes the Earth's surface
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molten rock.
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the earth is made up of soil rocks and water. Earth is also surrounded by air.
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