1. when energy increases, amplitude _. increases, decreases, or stays the same.

2. water waves are _ waves because the wave moves up and down.

transverse or longitudinal.

3. what moves the pieces of salt on top of the speaker when the music is playing? _

jjj89t'ji; it hink the answer is your mom is not si

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms