If scientists could sample Earth's inner core, they would most likely find . A. solid metal
B. partly molten rock
C. liquid metal
D. liquid rock

Why do scientists divide Earth's core into an outer core and an inner core?
A. they were formed in different geologic eras
B. They have a different chemical composition
C. they exist in different states of matter
D. they are divided by a layer of partly molten material called the mesosphere

Which is the correct order of Earth's structural layers, from the outer layer to the center?
A. outer core, inner core, mesosphere, asthenosphere, lithosphere
B. lithosphere, outer core, asthenosphere, inner core, mesosphere
C. asthenosphere, mesosphere, lithosphere, outer core, inner core
D. lithosphere, asthenosphere, mesosphere, outer core, inner core

Which is the outermost compositional layer of Earth?
A. asthenosphere
B. outer core
C. crust
D. mantle