Question

The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion are called a. S waves. b. P waves. c. Surface waves. d. Mercalli waves. Please select the best answer from the choices provided A B C D

Answer 1

Answer:

B. P -waves

Explanation:

P waves, also known as Primary or Pressure waves travel through the air with high velocity as sound waves. They are mechanical waves propagated by alternating compressions and expansion of the medium through which they travel.

The particles travel as a longitudinal wave motion, parallel to the direction of the wave propagation.

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Answer 2

Answer:

The asnwer would be B. P waves

Explanation:

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