inner core?

Possible Answer:
The inner core of the Earth, its innermost part, is a primarily solid ball with a radius of about 1,220 km (760 mi), according to seismological studies. (This is about 70% of the length of the Moon's radius.) It is believed to consist primarily of an iron – nickel alloy, and to be about the ... - read more

Possible Answer:
The solid inner core (Fig. (Fig.1) 1) is the most remote and enigmatic part of our planet, and, next to the crust, is the smallest “official” subdivision of Earth's interior. - read more

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