Which of the following statements best describes Earth’s inner core and Earth’s outer core? A. The convection of liquid metals in the inner core creates a magnetic field at the outer core.
B. The outer core is under too much pressure to be solid because the inner core is melting it.
C. The inner core is composed of liquid iron and nickel, and the outer core is a solid ball of iron.
D. The liquid outer core of the Earth lies above the Earth’s solid inner core and below its mantle.