Question

Sound needs a _______ to travel

Answer 1

Answer:

sound needs a medium to travel

Answer 2

Answer:

1. Sound needs a medium to travel.

2. Sound is a mechanical wave that needs a material medium like air, water, steel, etc, for its propagation.

3. The sound wave is a longitudinal wave.

4. The particles of the medium vibrate in a direction parallel to the direction of the propagation of the wave.