In what kind of waves do sound ravel in?

Answer:
Longitudinal waves. The other category of waves, transverse waves, can't travel in a gas. This is valid in the case of mechanical waves; because electromagnetic waves are also transverse waves, and they can travel even in a vacuum.
First answer by Hilmarz. Last edit by Hilmarz. Contributor trust: 802 [recommend contributor recommended]. Question popularity: 4 [recommend question].