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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
State the gaseous composition of the atmosphere.
Mention any two functions of the atmosphere.
What is called weather?
Explain the following term/process in detail:
Normal Lapse Rate of Temperature
How does atmosphere govern life on earth?
Why should we protect the atmosphere?
What is ‘Atmosphere’?
Define the following
Mesosphere
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 ionosphere (thermosphere) is suited to long distance communication.
Give reasons for the following :
The exosphere allows the gas molecules to easily escape into space.
Atmosphere is the most dynamic element in Environment’. Discuss.
Answer the following questions
Which two gases make the bulk of the atmosphere?
Answer the following questions
Which gas creates green house effect in the atmosphere?
What is the significance of greenhouse gas?
How do Bacteria help plants use nitrogen?
How does nature balance our life? What is the result if this balance is disturbed?
_______ is the most important gas for the survival of living organisms.
This ______ gas is chemically inactive in atmosphere.
Write about the composition of the Atmosphere.
This ______ is a permanent gas in the atmosphere.
This ______ gas helps in protecting the earth from radiation.
Which one of the following gases constitutes the major portion of the atmosphere?
Which one of the following gases is transparent to incoming solar radiation and opaque to outgoing terrestrial radiation?
