Earth question.................

Question

The presence of a magnetic field is a good indication that:

Answer: a. A large amount of magnetic material, probably brought to Earth during a meteorite fall, is buried somewhere near the North Pole.

b. A quantity of liquid metal is swirling around in the Earth's core.

c. The Earth is composed mostly of iron.

d. The Earth is completely solid.

Answer 1

b

Answer 2

I say b.  The core of the Earth have two layers.  The outer core is liquid, but the inner core of the planet is solid.