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The Inner Core of the Earth lies at the centre of the Earth. It is solid and is composed of iron and nickel alloys. It also contains the heavy radioactive minerals. These latter; and gravitational pressure; create the heat at the Earth's centre. About 6000 degrees - about the same temperature as the surface of the Sun.

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10y ago
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3mo ago

The inner core is the deepest layer of Earth, located beneath the outer core and mantle. It is a solid sphere composed mostly of iron and nickel, with temperatures reaching up to 9,000 degrees Fahrenheit.

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14y ago

Divided chemically, the most rigid is the crust. Structurally, the lithosphere is considered the most brittle.

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14y ago

The lithosphere.

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Q: Which of Earth's layers is the deepest?
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