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प्रश्न
How is the presence of the ozone layer essential to preserve life on earth?
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उत्तर
The ozone layer is essential for preserving life on Earth because it acts as a protective shield in the atmosphere. It absorbs the harmful ultraviolet (UV) rays from the sun, which can cause skin cancer, eye damage, a weakened immune system, and harm to plants and animals. Without the ozone layer, these harmful rays would directly reach the Earth’s surface, causing severe damage to all forms of life.
Thus, the presence of the ozone layer ensures a safe environment for living organisms by preventing excessive exposure to UV radiation.
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संबंधित प्रश्न
Give role of atmosphere in climatic control.
Name the following:
The layer of atmosphere which contains the ozone layer.
What would happen to the earth if the atmosphere disappeared?
Fill in the blank
The rate at which the temperature drops in the ____________ is 1°C per 165 metres.
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.
The stratosphere is the lowest layer of the atmosphere.
Explain the significance of the earth’s atmosphere.
What is an important feature of Stratosphere?
Tick the correct answer:
The major constituent of atmosphere by percent is ____________
Mountaineers carry oxygen in cylinders when they climb mountains that are more than 5000 m high. What could be the reason for that?
When is World Environment Day Celebrated?
Atmosphere gets heated by conduction than solar radiation.
__________ is the great circle at the centre of the earth.
Match the following.
| 1. | Troposphere | Satellite |
| 2. | Stratosphere | Space craft |
| 3. | Exosphere | Ozone layer |
| 4. | Thermosphere | Meteors |
| 5. | Mesosphere | Weather change |
There is cut-off signal when NASA rocket reaches in the region of ______.
Give Reason:
Exosphere is characterised by aurora Australis and aurora borealis.
Why is Troposphere called as weather making layer?
Draw a suitable diagram for the structure of the atmosphere and label it and describe it.
Define troposphere.
