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The Atmosphere

 The layer of air that surrounds the Earth is called the Atmosphere. 



It is a mixture of gases , dust and water vapour.

The word Atmosphere is derived from the word "atmos" which means "vapour".

The gravitational force of the Earth holds the atmosphere around it.

Use of Atmosphere

  • It provides the life giving gas Oxygen and exhale Carbon di oxide.
  • it acts as a blanket and keeps the Earth warm by trapping the heat that radiates from the Earth.(terrestrial radiation)

  • It protects life from harmful rays and the scorching heat of the Sun.



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