Question

What does the Earth's magnetic field reveal about the structure of the Earth's layers?A. That the mantle is liquidB. That the outer core is liquidC. That the mantle is solidD. That the outer core is solid.

Answer 1

The liquid outer core is the source of the earth's magnetic field, as a result of its metallic nature, which means it contains electrons not attached to particular nuclei. Heat is transferred upward to the mantle from the inner core via convective cells, in which the liquid in the outer core flows in looping patterns.

Answer: B. That the outer core is liquid