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प्रश्न
State any three characteristics of the stratosphere
उत्तर
The main characteristics of stratosphere are:
(a) There are no clouds or weather changes so it is safe for air travel.
(b) It extends from the top of troposphere up to 50 km above the surface of earth.
(c) This layer has a band of ozone gas which protects us from sun’s harmful ultraviolet rays.
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संबंधित प्रश्न
How does the average temperature of Earth remain fairly steady?
Fill in the blank
The layer of air around the earth is called the ________.
Discuss the importance of the different layers of the atmosphere?
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 |
Choose the correct answer.
This layer of the atmosphere has the lowest temperature.
State whether the following is true or false.
The temperature drops at the rate of 1°C per 185 metres in the atmosphere.
State whether the following is true or false.
The stratosphere extends from the top of the troposphere up to 80 km above the surface of the earth.
Name the important gases that are found in the atmosphere.
Write True or False.
CFCs and BFCs protect the ozone layer.
What is the troposphere?
What is the difference between the troposphere and the tropopause?
Why is the thermosphere important?
The lowest layer of the atmosphere is ______.
______ reflects radio waves.
When is World Environment Day Celebrated?
__________ is used to measure pressure in the air.
The atmospheric layer, which lies beyond the exosphere is ______.
A layer located in stratosphere which absorbs ultraviolet rays of sun called ______.
Why is Heterosphere called so?
The ozone layer protects all life on earth from the harmful ______ rays of the sun.
