In contrast to the solid outer mantle,parts of the central regions of the Earth's interior are thought to be fluid.Which of the following supports this idea?
A)P seismic waves cannot pass through those regions.
B)S seismic waves cannot pass through those regions.
C)Neither P nor S seismic waves can pass through those regions.
D)Both P and S seismic waves easily pass through those regions.

Question

Quizplus · Accepted Answer

S seismic waves cannot pass through fluid regions, while P seismic waves can pass through them but are refracted or slowed down, indicating a change in density or state of the material they pass through. Thus, the fact that P waves can still pass through these central regions supports the idea that they are fluid.

In Contrast to the Solid Outer Mantle,parts of the Central