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प्रश्न
Discuss the importance of the different layers of the atmosphere?
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उत्तर
The earth is the only planet in the universe that has life. One of the reasons why life exists on this planet is an encompassing blanket of gases called the atmosphere. It is like a blanket of air that protects the earth from the harmful rays of the sun. It also controls the temperature and, most important of all, it contains oxygen, which is essential for every form of life. This almost invisible blanket is kept intact around the planet by another invisible entity called gravity.
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संबंधित प्रश्न
Name the following:
The layer of atmosphere which contains the ozone layer.
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.
We need to understand that global warming, climate change, acid rain, and ozone depletion are all happening because of our dependence on fossil fuels and CFC-based technologies. Therefore, the need of the hour is to reduce our dependence on them.
What can you do in this regard?
State whether the following is true or false.
Communication satellites orbit in thermosphere.
Write True or False.
CFCs and BFCs protect the ozone layer.
State any three characteristics of the stratosphere
State any three characteristics of the mesosphere.
This is a picture of a supersonic aircraft.
In which layer of the atmosphere does this airplane normally fly?
In your notebooks, draw a diagram showing the layers of the atmosphere. Mark clearly the ozone layer, the height at which a jet plane can fly and also the height up to which birds can fly.
What is responsible for causing a hole in the ozone layer?
Name different layers of atmosphere. Describe the important characteristics of each layer.
__________ is the great circle at the centre of the earth.
Why is atmosphere essential for life on earth?
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.
Atmospheric layer important for human beings is ______.
______ is the lowest layer of the atmosphere.
A ______ shows the direction in which the air is moving at a particular place.
Highly reactive gas was later names ‘oxygen’ by ______.
