Question

2. The travelling of sound is called of
sound.​

Answer 1

Answer:

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Explanation:

Traveling of sound are called sound waves

Answer 2

Answer:

longitudinal wave

Explanation:

Sound energy causes the molecules to move back and forth in the same direction that the sound is travelling. This is known as a longitudinal wave. (Transverse waves occur when the molecules vibrate up and down, perpendicular to the direction that the wave travels). Speaking (as well as hearing) involves vibrations.