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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
How is carbon dioxide a useful gas for life on earth?
State the gaseous composition of the atmosphere.
Mention any two functions of the atmosphere.
Name the constituent gases of atmosphere which scientists consider responsible for climate change.
What keeps the atmosphere in a dynamic state?
What is called weather?
Explain the following term/process in detail:
CFCs
What is ‘Atmosphere’?
What is Atmospheric pressure?
OR
Is Atmospheric pressure the same on every place on the surface of the Earth?
What are the properties of Troposphere?
Give reasons for the following :
Solid particles play an important role in the atmosphere.
Give reasons for the following :
The exosphere allows the gas molecules to easily escape into space.
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?
Why do green plants use carbon dioxide?
Give an account of the composition of the atmosphere.
What are the processes responsible for heating the atmosphere?
Daniel Rutherford discovered ______ in atmosphere.
Write about the composition of the Atmosphere.
This ______ gas helps in protecting the earth from radiation.
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:
Oxygen gas is in negligible quantity at the height of atmosphere:
Which one of the following gases is transparent to incoming solar radiation and opaque to outgoing terrestrial radiation?
