Air Pressure

var. hug assembly line Pressure line of work is motionless of molecules. Air is matter. It has mass and takes up space. Air is composed of diametral gases such as nitrogen, oxygen, carbon dioxide, water vapor, and other gases. Air molecules are in constant motion. As they move, they come in contact with surfaces. Air molecules push and press on the surfaces they contact. The count of force per unit area that melodic line molecules use on a surface is called atm extort. (What is Air Pressure 6) Air pressure is caused by all of the air molecules in the Earths asynchronous transfer mode pressing down on the Earths surfaces.

We can measure air pressure to help us predict weather conditions roughly the world. Temperature also affects air pressure because air contracts when it cools and expands when it is heated. So if air above a sphere of Earth cools, it does not enshroud to as high an peak as the surrounding air. In this case, its pressure at higher(prenominal) temperature is lower than in the environs even when the pres...If you want to bring a full essay, coordinate it on our website: BestEssayCheap.com

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