Question

choose the correct answer
what type of wave travels by compressing particles closer together?
electromagnetic
longitudinal
transverse

Explanation:

Longitudinal waves are characterized by particles moving parallel to the wave's direction, creating compressions (particles closer together) and rarefactions. Electromagnetic waves don't need a medium and involve oscillations of electric and magnetic fields. Transverse waves have particles moving perpendicular to the wave's direction.

Answer:

Longitudinal