outer core fact?
The Earth's outer core is composed mainly of liquid iron (85 %) and nickel (5 %) with the rest made up of a number of other elements The outer core is 2,260 km thick The outer ... - read more
The outer core of the Earth is a liquid layer about 2,266 km (1,408 mi) thick composed of iron and nickel which lies above the Earth's solid inner core and below its mantle. - read more
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