Q1 of 16 Page 193

Fill in the blanks with suitable answer:

The average air pressure of the atmosphere at the sea level is__________.

1013.25 milibar

Reason: since air has weight, it will exert pressure which is known as atmospheric pressure. The unit which is used to demonstrate air pressure is millibar (mb). The average air pressure is 1013.25 mb since it is affected by many factors such as temperature, rotation of earth, altitude, water vapors etc.


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