write about core in earth
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With a gigantic ball of solid metal as its core, all of Earth is magnetic. Scientists believe Earth's powerful magnetic field is controlled by the liquid outer core. Earth's magnetic field protects us from all sorts of charged particles floating around the solar system, including many of the Sun's harmful rays.
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Earth's core is the very hot, very dense center of our planet. The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle.
The core is found about 2,900 kilometers (1,802 miles) below Earth's surface, and has a radius of about 3,485 kilometers (2,165 miles).
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