Advertisements
Advertisements
प्रश्न
What is Atmospheric pressure?
OR
Is Atmospheric pressure the same on every place on the surface of the Earth?
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.
APPEARS IN
संबंधित प्रश्न
Name the constituent gases of atmosphere which scientists consider responsible for climate change.
Why should we protect the atmosphere?
Give reasons for the following :
As a jet plane flies high in the sky, it leaves a white trail behind.
Give reasons for the following :
Dust particles plays a significant role in the atmosphere.
Answer the following questions
Which two gases make the bulk of the atmosphere?
How does carbon dioxide create green house effect?
Why do green plants use carbon dioxide?
This ______ is a permanent gas in the atmosphere.
This ______ gas helps in protecting the earth from radiation.
Sea salt, pollen, ash, smoke soot, fine soil – these are associated with:
