Earth's core is composed of iron and nickel is the correct statement about earth's core.
Earth's magnetic field is generated by the solidification of the planet's liquid iron core. The cooling and crystallization of the core moves the surrounding liquid iron that creates powerful electric currents that generate a magnetic field.
So we can conclude that Earth's core is composed of iron and nickel.
Learn more about magnet here: https://brainly.com/question/14997726
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