Question

Which characteristic of the outer core makes it unique among the other layers of Earth?

Answer 1

D. The outer core is the only layer that is composed of liquid metal, making it responsible for Earth’s magnetic field.

Answer 2

Answer:

The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. ... These powerful currents cause lines of invisible force to stretch around the Earth and thousands of miles into space, creating a magnetic field.