Question

The density of the Earth at its centre is said to be ________

(a) 9.9 g/cc

(b) 8.8 g/cc

(c) 13 g/cc

(d) 12.7 g/cc

This question was posed to me during an internship interview.

This key question is from The Mantle, The Core topic in portion Internal Structure of the Earth of Engineering Geology

Answer 1

The correct answer is (c) 13 g/cc

To elaborate: The value of density reaches 12.7 g/cc at the boundary of the inner core and becomes 13 g/cc at the centre of the Earth.