Seismic waves inside Earth
A) travel at a constant speed but change direction (refract)as they travel through materials of different densities or compositions.
B) travel at different speeds in materials of different densities or compositions and change direction (refract)as they move from one material to another.
C) travel in straight lines with speeds that change as the waves move through materials of different densities or compositions.
D) always travel in a straight line at a constant speed.

Question

Quizplus · Accepted Answer

Seismic waves travel at different speeds in materials of different densities or compositions, and they also change direction (refract) as they move from one material to another. This is due to their interaction with the properties of the materials through which they are passing.

Seismic Waves Inside Earth