In the diagram of the Earth's interior, which part would S waves made by earthquakes not pass through?

A. Inter core

B. Outer core

C. Mantal

D. Crust

The answer is; B

The outer core of the earth's interior is molten. S waves (also called shear waves) of an earthquake cannot propagate through liquids. This is because shear waves cannot be propagated by elastic medium; they require rigid medium such as the solid earth's crust. This property of S-waves is responsible for shadow zones on the earth's surface during an earthquake.