Question

longitudinal waves compress the medium they travel through. one example of a longitudinal wave is a - transverse sound waves gamma rays uv waves

Explanation:

Longitudinal waves compress the medium. Sound waves are longitudinal (they require a medium and propagate via compression/rarefaction). Transverse waves (like light - gamma rays, UV waves are electromagnetic/transverse) oscillate perpendicular to the direction of travel and don't compress the medium. So sound waves are the correct example of a longitudinal wave.

Answer:

B. Sound Waves