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Question
Explain in brief the different layers of the atmosphere and the basic functions of the main layers.
Answer in Brief
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Solution
| Layers of atmosphere | Distance from earth (approximate) | Basic Function |
| (i) Troposphere | 0 to 10 kilometers | The troposphere contains most of the air and oxygen in the atmosphere. This air is fit for respiration and survival of living organisms. Weather conditions are formed in the troposphere. |
| (ii) Stratosphere | 10 to 50 kilometers | The stratosphere contains the ozone layer which prevents the harmful effects of the sun (U. V. rays) from reaching the earth. |
| (iii) Mesosphere | 50 to 80 kilometers | The mesosphere is a very cold layer and most meteors burn up in this layer and hence are prevented from entering the earth's atmosphere |
| Thermosphere | 80 to 320 kilometers | - |
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RELATED QUESTIONS
Match the following.
| A | B | ||
| 1. | Troposphere | (i) | Ozone |
| 2. | Stratosphere | (ii) | Ions |
| 3. | Thermosphere | (iii) | Outer Space |
| 4. | Exosphere | (iv) | Lowest Temperature |
| 5. | Mesosphere | (v) | Densest Layer of atmosphere |
State whether the following is true or false.
The stratosphere is the lowest layer of the atmosphere.
What is an important feature of Stratosphere?
Very Short Answer Type Question:
What is the nature of the temperature?
Mountaineers carry oxygen in cylinders when they climb mountains that are more than 5000 m high. What could be the reason for that?
The atmosphere is divided into ___________ layers.
__________ is used to measure pressure in the air.
Why is atmosphere essential for life on earth?
A layer of Ions inside the Mesosphere is called ______.
Why do aircraft usually fly above the troposphere layer?
