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प्रश्न
Describe the composition of atmosphere.
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उत्तर
The atmosphere is composed of gases, water vapour, and dust particles. Nitrogen constitutes 78.8%, oxygen contributes 20.94% and argon contributes 0.93% in atmosphere. Other gases include carbon dioxide, helium, ozone, methane, hydrogen, krypton, xenon, and neon, etc. Nitrogen and oxygen together constitute 99% of the atmosphere. Neon, krypton, xenon are scarce gases. The proportion of gases changes in the higher layers of the atmosphere in such a way that oxygen will be almost in negligible quantity at the height of 120 km. Similarly, carbon dioxide and water vapour are found only up to 90 km from the surface of the earth.
संबंधित प्रश्न
What is known as atmosphere?
Mention any two functions of the atmosphere.
Name two chief characteristics of atmosphere.
Explain the following term/process in detail:
CFCs
What is ‘Atmosphere’?
Define the following
CFC’s
Define the following
Mesosphere
Define the following
Exosphere
Define the following
Thermosphere
Why does the atmosphere thin out at higher levels?
What are the properties of Troposphere?
What are the properties of Ionosphere?
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 :
As a jet plane flies high in the sky, it leaves a white trail behind.
Give reasons for the following :
The exosphere allows the gas molecules to easily escape into space.
Give reasons for the following :
Dust particles plays a significant role in the atmosphere.
‘The atmosphere acts as a blanket or a glasshouse’. Discuss.
State two advantages of convectional heating of the atmosphere.
How does carbon dioxide create green house effect?
Give an account of the composition of the atmosphere.
How do Bacteria help plants use nitrogen?
What are the processes responsible for heating the atmosphere?
Give Reason:
Nitrogen and oxygen are called permanent gases of the atmosphere.
Write about the composition of the Atmosphere.
This ______ is a permanent gas in the atmosphere.
Who discovered Nitrogen in the Atmosphere? When?
Sea salt, pollen, ash, smoke soot, fine soil – these are associated with:
Oxygen gas is in negligible quantity at the height of atmosphere:
Describe the composition of the atmosphere.
