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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?
Name the constituent gases of atmosphere which scientists consider responsible for climate change.
Name two chief characteristics of atmosphere.
What is called weather?
Explain the following term/process in detail:
Normal Lapse Rate of Temperature
Explain the following term/process in detail:
CFCs
Describe the structure of the atmosphere.
Why should we protect the atmosphere?
Define the following
CFC’s
Define the following
Exosphere
Define the following
Thermosphere
What is Atmospheric pressure?
OR
Is Atmospheric pressure the same on every place on the surface of the Earth?
Why does the atmosphere thin out at higher levels?
What are the properties of Troposphere?
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 :
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.
Answer the following questions
Which two gases make the bulk of the atmosphere?
How does carbon dioxide create green house effect?
What is the significance of greenhouse gas?
Why do green plants use carbon dioxide?
Give an account of the composition of the atmosphere.
_______ is the most important gas for the survival of living organisms.
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 ______ gas helps in protecting the earth from radiation.
Who discovered Nitrogen in the Atmosphere? When?
Which one of the following gases constitutes the major portion of the atmosphere?
Sea salt, pollen, ash, smoke soot, fine soil – these are associated with:
Describe the composition of the atmosphere.
