Answer the following question given this paragraph: 

Look at the skateboarders in Figure below . When they push against each other, it causes them to move apart. The harder they push together, the farther apart they move. This is an example of Newton’s third law of motion.


Q: When two skateboarders push against each other what happens?

 Choices:

- they stick together

- they rise

- they magnetize

- they move apart

A:
they move apart
