Question

Why do sound waves move faster through the ground than through the air?

A. Particles of matter are packed more loosely in the ground than in the air.
B. Particles of matter are packed more tightly in the ground than in the air.
C. Air doesn’t contain any particles of matter to transmit sound waves.
D. The elevation of the ground is lower than the elevation of the air space.

Answer 1

Answer: The answer is option A.

Explanation: Particles of matter are packed more loosely in the ground than in the air. This is true because it doesn't have thig like buildings and people stopping the sound waves.