Q: Density and pressure of air decreases with what?


Read this paragraph and choose the correct option from the provided answers:

Like density, the pressure of the air decreases with altitude. There is less air pressing down from above the higher up you go. Look at the bottle in Figure below . It was drained by a hiker at the top of a mountain. Then the hiker screwed the cap on the bottle and carried it down to sea level. At the lower altitude, air pressure crushed it. Can you explain why?.

 Choices:

- temperature

- humidity

- horizontal distance

- altitude


A:
altitude