The reduction of ______ waves at the core-mantle boundary indicates that the outer core is mostly liquid.
A)S-
B)P-
C)Rossby
D)Love
E)Rayleigh

Question

Quizplus · Accepted Answer

S-waves, or secondary waves, are shear waves that cannot travel through liquids. Their reduction at the core-mantle boundary indicates that the outer core is mostly liquid, as S-waves are unable to propagate through it.

The Reduction of ______ Waves at the Core-Mantle Boundary Indicates