Question

Which statement about sound is true because it is a mechanical wave?

It can travel through the vacuum of space.
It must travel through a medium.
o
It can travel only through air.
o It cannot travel through a medium.

Answer 1

Answer: It must travel through a medium.

Explanation:

A sound wave transports its energy by means of particle interaction. A sound wave cannot travel through a vacuum. This makes sound a mechanical wave.

Answer 2

It must travel through a medium

Step-by-step explanation: Because I said so >:(