Yes.
increasing
Pressure drops when the temperature drops.
When air pressure drops temperature also drops. Thus on high mountains low air pressure is accompanied by low temperature. This is true for high atmosphere also.
In most storms, which always includes hail storms, the barometric pressure drops. Which the pressure drops, that would allow clouds to form. The more it drops, the more intense the storm can get.
If the air pressure drops largely, there will be rain and/or a thunderstorm. If the air pressure drops not so much, it will be partly cloudy and/or breezy. If the air pressure barely drops, and stays more of a high air pressure, it will be sunny and calm. If the air pressure is about in the middle of the Anemometer, it will be partly cloudy. Also, I did not use this from any other website, this answer is from common sense (for me). Have a good day! =)
The pressure in the balloon stays the same, but the pressure outside drops as the altitude increases. And as the outside pressure drops, the balloon expands.
Pressure drops as you go up.
Blood pressure would decrease
The potential energy starts decreasing. It gets converted into kinetic energy.
When the pressure drops in a tropical storm, or just about any type of storm, is usually means that it is getting stronger.
The air pressure drops sharply in a tornado
Because as atmospheric pressure drops with altitude, the total oxygen available to the engine drops. The fuel injection maintains the mixture by decreasing the fuel flow. Rule of thumb - at 8500' MSL, a normally-aspirated engine will produce about 50% of the power it produces at sea level.