Question

1. the wheels on a skateboard slow down over time because of the select between the wheels and the ground. select the law of gravity mass friction tension

Explanation:

Friction is a force that opposes motion. When skateboard wheels roll on the ground, friction between them and the ground acts to slow down the wheels. Gravity is a force of attraction between masses and doesn't directly slow - down the rolling wheels in this context. Mass is a measure of the amount of matter in an object and isn't a force that causes the wheels to slow. Tension is a pulling force in a string or similar object and is not relevant here.

Answer:

friction