Which layer of the atmosphere has the least amount of air pressure?
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It's the troposphere because : The troposphere contains 75 per cent of the atmosphere's gas. It also holds huge amounts of dust and water vapor, and is often dense with cloud…s and mist. Air pressure is greatest in the troposphere, because gravity pulls the atmosphere towards the Earth, squeezing most of its weight into this lowest layer.
The exosphere is the atmospheric layer that has the lowest airpressure. This layer is the outermost layer of the atmosphere.
The troposphere (where we live).
Hmm... let me see. Hey, Mom, what's the answer? Oh, that's right. The Exosphere is the answer to this question.
At the top.
why is air pressure different in the different layers of theatmosphere?
Air pressure reduces with height, so the top layer has the lowest pressure.
The exosphere is the highest level and it has the least air.
Air pressure decreases as altitude increases. Matter is held by gravity. The same reason that pressure is greatest in the core, the least pressure is farthest from the core. M…atter "thins - out". The heaviest elements are always in the center and the lightest are furthest from the center.
The different "layers" are classifications of horizontal sections of the atmosphere, volumes which exhibit different attributes. The high and low pressure regions are areas wh…ere the atmosphere is thicker or thinner.
In Earth Sciences
The troposphere. The lower you go, the higher the air pressure. The average air pressure at sea level is 1013 mbar, or 101.3 kPa.
In Meteorology and Weather
In Atmospheric Sciences
The atmosphere consists of 5 layers: the troposphere, which we live in; followed by stratosphere, mesosphere, thermosphere and exosphere. Air pressure at any of these layers i…s typically caused by hydrostatic pressure, defined as P = hpg, where P is the pressure, h is the height or depth of fluid, and g is the gravitational acceleration. In simple context, my physics lecturer once explained to me: the reason why we live under an atmospheric pressure of 1 bar is simply because there is a column of air above us. As we move upwards (e.g. in an airplane or on top of a mountain), the height of this column is reduced, thus the atmospheric pressure is less. Therefore, the first layer of atmosphere (or the lowest layer) will experience the highest air pressure.