Question

which of the following describes the outer core?
a. hot, partially melted rock that flows
b. the solid, rocky layer on the outside
c. a dense layer of solid metal
d. a layer of liquid metal that spins

Explanation:

The outer core is a layer of liquid metal (mostly iron and nickel) that spins. Option A describes the mantle (asthenosphere part). Option B describes the crust. Option C describes the inner core.

Answer:

D. A layer of liquid metal that spins