What is the change in barometric pressure with altitude?

Atmospheric pressure is created due to the fact that, due to gravity, the upper layer of air is pressed against the layer below. Further, the top layer and next to it the layer located next to it, press on those layers that are even lower and so on. The bodies located near the earth’s surface experience the greatest atmospheric pressure. Therefore, when climbing up, for example, uphill, the pressure of the atmosphere gradually decreases according to the rule: with an increase in altitude for every 12 meters from sea level, the pressure decreases by 1 mm of mercury. At very high altitudes, the pressure drops more. A pressure of 760 mm Hg is considered normal. Art. at a temperature of 0 ° C. With an increase in air temperature, its pressure also changes: it grows.