Advertisements
Advertisements
प्रश्न
State any three characteristics of the mesosphere.
Advertisements
उत्तर
The main characteristics of mesosphere are :
- It extends from the top of stratosphere upto a height of 80 km above the earth.
- This layer has lowest temperature in the atmosphere reaches -100°C at its end.
- Most meteors from space burn up in this layer.
APPEARS IN
संबंधित प्रश्न
Give role of atmosphere in climatic control.
Fill in the blank
______ per cent of the atmosphere is made of nitrogen.
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 gas protects us from the harmful ultraviolet radiation.
State whether the following is true or false.
The earth’s atmosphere contains 99 per cent oxygen, which is essential for life.
State whether the following is true or false.
Communication satellites orbit in thermosphere.
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 an important feature of Stratosphere?
How is ozone important for us?
Very Short Answer Type Question:
What is the nature of the temperature?
All weather changes occur in the Troposphere.
Height of mesosphere which lies after troposphere is
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?
Give Reason:
Exosphere is characterised by aurora Australis and aurora borealis.
Why is the troposphere the most important of all the layers of the atmosphere?
Atmosphere is divided into ______ different layers.
______ is the lowest layer of the atmosphere.
The atmosphere is held in place by the earth’s ______.
