3. Describe the composition of air.
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air composed of many gases along some water vapour and some dust particles. the gases present in air are nitrogen, oxygen,argon, carbon dioxide and other gases
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there is a layer that surrounds our Earth in the form of atmosphere it has many layers like troposphere thermosphere and there are many gases in our earth that is present in air that are carbonic dioxide Sulphur Dioxide Nitrogen dioxide when it rains this gases present in air mix with the water and form a seeds like sulphuric acid carbonic acid nitric acid
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