Question

why air is regarded as a mixture

Answer 1

Air is regarded as a mixture because it has a lot of contents like oxygen ,nitrogen , carbon dioxide etc.

Hope this helped u

Answer 2

Air is regarded as a mixture because air is an nocturne of many gases like:- nitrogen, oxygen, carbon dioxide, argon, oxides of sulphur, water vapours etc.

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯