Question-1
1. The force exerted by the vertical column of air per unit of area is called
a. Humidity
b. Atmospheric Pressure
c. Temperature
d. Condensation.
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Answer:b. Atmospheric Pressure
Explanation:
The atmospheric air extends up to many kilometres above the surface of the earth. The pressure exerted by this air is known as atmospheric pressure. We know that pressure is force per unit area. ... The weight of air in a column of the height of the atmosphere and area 10 cm 10 cm is as large as 1000 kg.
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