Question

Which statement is true of a mechanical wave? a It must have a medium.

b It can travel in a vacuum.

c It must travel in empty space.

d Both sound and light are examples.

Answer 1

the answer is A

it needs a medium to travel

Answer 2

The answer is A. It must have a medium

Step-by-step explanation:

With out a medium the wave will not travel at all.

-Hope This Helps!

-Justin:)