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2015-08-01T23:18:24+08:00

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Solid because it is made off very dense and heavy materials like iron and nickel.. these don't melt easily so they stay solid.
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2015-08-04T19:12:16+08:00
The inner core is solid because its made of solid nickel and iron , what keeps it in that phase is the extreme temperature that could have molten the solid iron and nickel but is believed to solidify as a result of pressure freezing which is common to liquids that are subjected under tremendous pressure  
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