The air has weight just has any other material object has weight. Generally it cannot think air has weight because it cannot see but one can feels it weight and movement for a certain period when air blows around us or human body. However since the air is an object which have weight. The air is pulled toward the earth by gravitational attraction. At sea level and at as average temperature a cubic foot of air weights about 0.08 pounds it seems a very small weight. However the blanket of air the surrounds the earth is many miles thick. It means that there are in effect many thousands of cubic feet of air, piled one on top of another all adding their weight. The real weight of the air or its under ward force amounts is calculated about 15 pounds which is found in sea level. Generally fish are subjected to much greater pressure more than 100,000 psi at several thousand feet down in the ocean.
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