Pressure is due to the number of molecules hitting you or your instrument. As you go up in altitude, there are less molecules hitting you, i.e., the pressure decreases. The higher you go, you are getting thinner atmosphere, which means there are less molecules available, so the pressure is lower. Air molecules are more abundant closer to the surface, and therefore the molecules are closer together, i.e. higher pressure.
Decrease
1,700-foot decrease.
Five ways:Temperature (increase in temperature means increase in pressure.)Velocity (increase the speed means decrease in pressure.)Amount of air particles (more particles means more pressure.)Changing the container (More space means less pressure.)Altitude (increase in altitude means decrease in pressure.)
The boiling point of water decrease when the altitude increase and the atmospheric pressure decrease.
Because as you climb higher there is less air above you pressing down on you with its weight.
Decrease
1,700-foot decrease.
Air pressure.
Five ways:Temperature (increase in temperature means increase in pressure.)Velocity (increase the speed means decrease in pressure.)Amount of air particles (more particles means more pressure.)Changing the container (More space means less pressure.)Altitude (increase in altitude means decrease in pressure.)
The boiling point of water decrease when the altitude increase and the atmospheric pressure decrease.
Altitude decreases, pressure increase, temperature decreases (some, but less effect than pressure), density goes up.
The temperature in the troposphere and the mesosphere decrease with altitude.
Decrease
In the troposphere, temperatures decrease with altitude (air pressure), in the effect known as the adiabatic lapse rate (9.8 °C per thousand feet).
Because as you climb higher there is less air above you pressing down on you with its weight.
Atmospheric pressure will decrease as altitude increases.
That's an effect of the increase and decrease in pressure which goes along with the altitude change.