Air is a mixture and its composition keeps on changing from one place to another.justify your a answer with the help of two examples
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1.Places near factories have less oxygen and more other gases
2.in oceans seas and other water bodies have more oxygen and less nitrogen
3.in mines there is less oxygen and other gases.
2.in oceans seas and other water bodies have more oxygen and less nitrogen
3.in mines there is less oxygen and other gases.
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Because there are factoary to mixture in air
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