AIR PRESSURE

DEFINITION AIR PRESSURE IS THE DOWNWARD FORCE EXERTED BY THE WEIGHT OF AIR PER UNIT AREA ON THE EARTH’S SURFACE. AIR PRESSURE MAY VARY WITH ALTITUDE AND TEMPERATURE. AIR PRESSURE IS GREATER AT THE SEA LEVEL AND DECREASES WITH INCREASING ALTITUDE. INSTRUMENT USED BAROMETER ANEROID BAROGRAPH ISOBARS IS THE LINES ARE JOINING PLACES WITH EQUAL […]

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