Question

Sound is a ____wave and needs a material medium to travel.​

Answer 1

Sound needs a material medium for their propagation like solid, liquid or gas to travel because the molecules of solid, liquid and gases carry sound waves from one point to another. Sound cannot progress through the vacuum because the vacuum has no molecules which can vibrate and carry the sound waves.

Answer 2

Answer:

Sound is a mechanical wave and needs a material medium to travel.

Hope it helps ❤️