Question

How do the mass and the density of the mantle compare with the mass and density of earth's core?
A. The mantles mass is greater than the cores mass, but with less density.
B. The mantles mass and its density are greater than that of the core.
C. The mantles mass is less than the cores mass, but with greater density.
D. The mantles mass and its density are less than that of the core

Answer 1

C. The mantle's mass is less than the core's mass, but with greater density.

Answer 2

Which can be excluded from the list of events caused by the flow of thermal energy inside the Earth.
A. Volcanic eruptions
B. Valley formations
C. Earthquakes
D. Thunderstorms

Answer 3

D. Thunderstorms.