P-waves travel faster through the inner core than the outer core because the inner core is
A)hotter than the outer core.
B)the same as the outer core.
C)rock.
D)solid.

Question

Quizplus · Accepted Answer

P-waves are a type of seismic wave that can pass through both solid and liquid materials, but they travel faster through solids than liquids. The inner core is believed to be a solid, while the outer core is a liquid layer surrounding the inner core. Therefore, P-waves can travel faster through the solid inner core than the liquid outer core.

P-Waves Travel Faster Through the Inner Core Than the Outer