classifying sound waves\nare sound waves longitudinal or transverse?

Brief Explanations:

Sound waves are longitudinal. In a longitudinal wave, the particles of the medium vibrate parallel to the direction of wave propagation. For sound waves (e.g., in air), air molecules move back - and - forth in the same direction that the sound energy is traveling. This is in contrast to transverse waves (like light waves in vacuum, or waves on a string), where the particle vibration is perpendicular to the wave propagation direction.

Answer:

Longitudinal