Advertisements
Advertisements
प्रश्न
What is Atmospheric pressure?
OR
Is Atmospheric pressure the same on every place on the surface of the Earth?
Advertisements
उत्तर
Air has weight and, therefore, the atmosphere exerts pressure on the surface of the earth. It has been calculated that at sea level the pressure of air is about 1kg per square centimetre or enough to support a column of mercury 76 cm. in a tube. But with increase of height above sea level the pressure decreases because the overlying column of air goes on getting shorter.
संबंधित प्रश्न
What is known as atmosphere?
State the gaseous composition of the atmosphere.
How does atmosphere govern life on earth?
What is ‘Atmosphere’?
Explain the composition of the Atmosphere
Give reasons for the following :
The amount of water vapour in the atmosphere varies from place to place.
Give reasons for the following :
Solid particles play an important role in the atmosphere.
Give reasons for the following :
The exosphere allows the gas molecules to easily escape into space.
How do Bacteria help plants use nitrogen?
Who discovered Nitrogen in the Atmosphere? When?
