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प्रश्न
Describe the composition of atmosphere.
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.
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संबंधित प्रश्न
What is known as atmosphere?
State the gaseous composition of the atmosphere.
Mention any three functions of the atmosphere.
Name two chief characteristics of atmosphere.
What is called weather?
Explain the following term/process in detail:
Normal Lapse Rate of Temperature
Explain the composition of the Atmosphere
What is the significance of solid particles in the atmosphere?
Define the following
CFC’s
Define the following
Mesosphere
Why does the atmosphere thin out at higher levels?
Give reasons for the following :
The Earth does not experience extremes of temperature as in other planets.
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 gas creates green house effect in the atmosphere?
How does carbon dioxide create green house effect?
How does nature balance our life? What is the result if this balance is disturbed?
Give Reason:
Nitrogen and oxygen are called permanent gases 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?
Oxygen gas is in negligible quantity at the height of atmosphere:
