Which of the following waves can travel through a medium, but does not require the medium to propagate? sound waves ocean waves light waves seismic waves

The correct answer is "light wave".

Explanation:

Sound wave is a longitudinal wave in which the particle of the medium travels parallel to the propagation of the wave.

Sound wave needs medium to travel. It can propagate in solid, liquid and gas.

It can travel fastest in solid in comparison to liquid and gas.

Seismic waves and ocean need medium to travel.

Light wave is transverse in nature. It does not need any medium to travel. It can travel in vacuum. It travels with the speed of the light.

Therefore, light waves can travel through a medium, but does not require the medium to propagate.

an obstruction

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)