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Air Around Us — Science STD 6 — Question

Gujarat BoardEnglish MediumSTD 6ScienceAir Around Us1 Mark
Question
What is the composition of air?
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Answer

Air is a mixture of nitrogen $(78 \%),$ oxygen $(21 \%),$ carbon dioxide, water vapour and a few other gases $(1 \%).$ Some dust particles may also be present in it.

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