Air pressure above the wing is relatively smaller than that below the wing because that is what generates the lift the plane needs to fly into the sky, but if it is the other way round, the lift won't be generated and the plane will remain on ground.
Differ.
In similar conditions (temperature, pressure, inatallations, materials, etc.) a difference doesn't exist.
The service of an airplane may take 10 to 12 hours. This is for a Boeing plane. However the service time will differ with size.
difference
difference
The noun forms of the verb to differ are difference and the gerund, differing.
Differ.
The verb would be to differ.
There are no storms in high pressure systems. That's where the clear skies are.
Electromagnetic waves differ in there properties because of the difference in there frequency
Parenting styles differ depending with the cultural difference religion and personality.
Different is the adjective form of difference.