Answer:
A medium.
<h3>Explanation:</h3>
It's the material the wave is travelling through.
B----------- oxide is the correct answer
In what meters? miles an hour? i can’t answer unless i know that
Well. Depends.
You plan on doing a school project?
You should try baking soda and vinegar, almost everyone knows about this.
Orr you can use mentos and soda.
Or for fun, just get a watermelon or any fruit and use rubber bands all around it until it goes BOOM!
Hope this helps :D
