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प्रश्न
How is our atmosphere different from the atmospheres on Venus and Mars?
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उत्तर
Earth’s atmosphere is different from those of Venus and Mars. This difference lies essentially in their compositions. Earth’s atmosphere is a mixture of nitrogen (79%), oxygen (20%), and a small fraction of carbon dioxide, water vapours and other gases. This makes the existence of life possible on Earth. However, the atmospheres on Venus and Mars mainly consist of carbon dioxide. The amount of carbon dioxide on these planets can range from 95% to 97%.
संबंधित प्रश्न
What would have happened if there would have been no atmosphere around the earth?
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?
Fill in the blank:
The layer of the atmosphere where ozone is found is called the ________.
______ reflects radio waves.
Give Reason:
Exosphere is characterised by aurora Australis and aurora borealis.
This is the earth’s magnetic belt ______.
The ozone layer protects all life on earth from the harmful ______ rays of the sun.
Exosphere has a high temperature.
Analogy:
Weather changes: Troposphere.
Ozone layer: ______.
Define troposphere.
