There are two types of seismic waves: p-waves and s-waves. Which of the following describes both waves?

Question

There are two types of seismic waves: p-waves and s-waves. Which of the following describes both waves?

A. Both waves cause earthquakes.

B. Both waves occur in the ocean.

C. Both waves move the ground in the direction they travel.

D. Both waves move the ground perpendicular to the direction they travel.

Answer 1

D. Both waves move the ground perpendicular to the direction they travel.

Answer 2

There are two types of seismic waves: p-waves and s-waves. Which of the following describes both waves?

D. Both waves move the ground perpendicular to the direction they travel.

The correct answer is D. Both P-waves (primary waves) and S-waves (secondary waves) move the ground perpendicular to the direction they travel.