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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
Name two chief characteristics of atmosphere.
What is called weather?
Explain the following term/process in detail:
Normal Lapse Rate of Temperature
How does atmosphere govern life on earth?
What is ‘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?
What are the properties of Troposphere?
What are the properties of Ionosphere?
Give reasons for the following :
The Earth does not experience extremes of temperature as in other planets.
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 :
Dust particles plays a significant role in the atmosphere.
Answer the following questions
What is atmosphere?
Answer the following questions
Which two gases make the bulk of the atmosphere?
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.
This ______ is a permanent gas in 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:
