What is air and it uses
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The atmosphere is the protective air envelope around the earth. Air contains oxygen that we breathe and protects us from the harmful UV rays of the sun. Air is a mixture of different gases and is all around us. We cannot see it but it is essential for all living organisms.
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the atmosphere of earth is the layer of gase commonly known as air.
its uses are combustion,maintaing temperature,photosynthesis
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