The wing of an airplane is usually curved on top and flat on the bottom. When the air moves over the curved top portion of the wing, it speeds up because of the shape. This lowers the pressure with respect to the bottom part of the wing. Lower pressure on the top results in the lift required to keep the airplane aloft. In conclusion Fluid pressure from gravity is the weight of the fluid above divided by the area it is pushing on.
Fluid pressure applies in all directions.
Internal pressure of an object equals the external fluid pressure, otherwise the object could be crushed. Wind and heating can also create pressure. There is no brain inside my skull 2. Increased air pressure at high altitudes cause the popping Cheap headsets cause them to pop Your body is compensating for the decreased air pressure 3. If you got all three correct, you are on your way to becoming a champion in science.