Which type of wave needs a medium to travel?(1 point) Responses light waves, because they travel by oscillating electromagnetic fields light waves, because they travel by oscillating electromagnetic fields light waves, because they travel by oscillating molecules light waves, because they travel by oscillating molecules sound waves, because they travel by oscillating electromagnetic fields sound waves, because they travel by oscillating electromagnetic fields sound waves, because they travel by oscillating molecules
1 answer
sound waves, because they travel by oscillating molecules