The correct answer is: [B]: "sludge" .
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The earth’s inner core is a solid ball of iron, nickel and other metals, while the outer core is liquid metal composed of iron and nickel as well. The temperature of the inner core is estimated to be about 5,400 degrees C or 9,800 degrees F, far beyond iron’s melting point.
Yes, as the earth gets closer it gets warmer and as the sun gets further it gets colder
