Question

Which of the following BEST describes how sound waves move through air?

1. Sounds waves cause molecules to squeeze together in the air and become more dense
2. Sound waves cause molecules to spread out and move away from each other
3. Sound waves cause molecules to vibrate in longitudinal waves
4. Sound waves shoot molecules in straight lines through the air

Answer 1

2 is the answer to your question

Answer 2

I would say 2. Sound waves cause molecules to spread out and move away from each other.

Step-by-step explanation:

Thats what I was taught...