Atp Atrium Attachment Attacking Attract Attributes Auditorium Autobiography Average Average Speed Awpm Axis Axle Atmospheric Pressure Atmospheric pressure is the pressure at any point above the earth which is caused by the weight of the all the gasses in the atmosphere above that point. The higher you go in the atmosphere, the lower atmospheric pressure becomes. When the weather forecaster on TV says that a high pressure system is on its way, it means that the air coming in is heavier than the air that is already here.
Heavier air makes for higher atmospheric pressure .
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