Question

Select the correct answer.

Which statement best defines why sound waves are mechanical waves?
OA. They require a medium in which to travel.
OB. They can travel through vacuum.
OC. They can travel only through solids.
OD. They can travel only through gases.

Answer 1

they require a medium in which to travel

Answer 2

A. They require a medium to travel through

Step-by-step explanation:

The medium can be any substance-solid,liquid,or gas- and the wave's speed depends on the properties of the material of the medium the wave travels through.