Mention two features of the Earth’s Core.
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The core is made of two layers: the outer core, which borders the mantle, and the inner core. The boundary separating these regions is called the Bullen discontinuity. The outer core, about 2,200 kilometers (1,367 miles) thick, is mostly composed of liquid iron and nickel.
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The Earth's core comprises a solid inner core and liquid outer core, both made mostly of iron. Outside of these parts are the mantle, then the crust on which we live. Earth scientists have theorized that the Earth's core is responsible for the planet's magnetic field as well as plate tectonics.
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