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प्रश्न
What is meant by the term ‘atmosphere’? State the role played by the atmosphere for the survival of mankind.
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उत्तर
A blanket of air around earth is called the atmosphere. Without an atmosphere, life would not be possible, as the atmosphere protects us from harmful gases. We could not live without the air present in the atmosphere. In the absence of the atmosphere, the earth would get so cold at night that we would not be able to survive. No \[\ce{CO2}\] and \[\ce{N2}\] for plants without atmosphere.
संबंधित प्रश्न
Name two important processes supported by oxygen present in air.
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nitrogen
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Name a device which uses wind energy to generate electricity.
______ is important for all living creatures.
