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प्रश्न
Choose the correct answer.
21 per cent of the atmosphere is composed of
विकल्प
Helium
Oxygen
Nitrogen
Hydrogen
उत्तर
Oxygen
APPEARS IN
संबंधित प्रश्न
How is our atmosphere different from the atmospheres on Venus and Mars?
Give role of atmosphere in climatic control.
Explain in brief the different layers of the atmosphere and the basic functions of the main layers.
We often leave the lights switched on and fans running when we are not in the room. We switch on the air-conditioning even though we don’t really need it. We insist on being dropped to school in the car every day. Thus, we waste valuable energy which is generally produced by burning coal and petroleum. As you know, the burning of these fuels release gases that pollute the atmosphere.
Make a list of the similar things that we do without realizing that we are destroying the environment. Think of the ways that we can behave differently.
The upper part of the thermosphere is called the ______.
Collect rainfall data from the website of the Indian Meteorological Department (IMD) for Mumbai, Chennai, Delhi, and Kolkata and discuss how rainfall patterns have changed in the last 5 years.
Write briefly about the layers of the atmosphere
What is an important feature of Stratosphere?
Very Short Answer Type Question:
What is the nature of the temperature?
______ reflects radio waves.
__________ is the great circle at the centre of the earth.
If there is no atmosphere, what will be the condition of the earth?
Why is atmosphere essential for life on earth?
Large jet planes normally fly here ______.
A layer located in stratosphere which absorbs ultraviolet rays of sun called ______.
Atmosphere is divided into two main vertical regions the upper portion is Heterospshere and the lower is ______.
Give Reason:
Exosphere is characterised by aurora Australis and aurora borealis.
Atmosphere is divided into ______ different layers.
The atmosphere is held in place by the earth’s ______.
