Question

the four properties of air

Answer 1

ir is matter that has weight and contains 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of argon, carbon dioxide and other ingredients.

Answer 2

1)air is a mixture of all gases
2)smoky air or dusty air exhibits the property of a colloid
3)air has no odor no colour etc
4)as the particles of gases are in motion the air exists the pressure which is called atmospheric pressure