Answers

2016-07-12T09:02:11+08:00
Aside from the fac that the Earth has a magnetic field and that it must be iron or other materials which are magnetic in nature, the inner core must have a density that is about 14 times that of water.
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2016-07-12T14:14:16+08:00
Inner core is made up of Iron and Nickel.
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