Answers

2016-08-02T21:00:24+08:00
Liquid ( iron and nickel), molten materials aka "magma"
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The Earth's inner core is the Earth's innermost part and according to seismological studies, it has been believed to be primarily a solid ball with a radius of about 1220 kilometers, or 768 miles (about 70% of the Moon's radius). It is composed of an iron–nickel alloy and some light elements.
2016-08-02T21:11:19+08:00
Once-molten-then-theorized-to-be-solidified nickel and iron.
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