Question

what is the meant by atmospheric pressure and what are its cause of atmospheric pressure

Answer 1

atmospheric pressure,also calledbarometric pressure,forceper unit area exerted by an atmospheric column (that is, the entire body ofairabove the specified area). Atmosphericpressurecan be measured with amercurybarometer(hence the commonly used synonymbarometric pressure), which indicates the height of a column ofmercurythat exactly balances theweightof the column ofatmosphereover the barometer.

Answer 2

Answer:

Atmospheric pressure is caused by the gravitational attraction of the planet on the atmospheric gases above the surface, and is a function of the mass of the planet, the radius of the surface, and the amount and composition of the gases and their vertical distribution in the atmosphere.