Answered

A student takes a closed bag of chips from sea level to the top of a mountain. The bag of chips expands. The student explains that there is less
air pressure pushing on the bag as the car gains altitude.
Why does the air pressure on the bag decrease?
OA. The air has fewer particles to collide with the bag.
B. The air in the car gains particles that push on the bag.
OC. Air particles move faster and move past the bag without hitting it.
OD. Air particles in the car slow down and hit the bag more frequently.