Answer:
Denser air exerts more pressure than less dense air.
Explanation:
The options to this question are:
1-As altitude increases, pressure increases.
2-As altitude increases, air density increases.
3-Air pressure and density are lowest at sea level.
4-Denser air exerts more pressure than less dense air.
Analyzing the options:
The first is not true since as altitud increases pressure decreases.
The second one is also not true because as altitud increases air density decreases.
The third one is false since air pressure is the highest at sea level.
The correct option is: Denser air exerts more pressure than less dense air.
because denser air has more particles and more close together than less dense air, so it exerts greater force and therefore greater pressure.
