Question

# Air is a mixture. Prove this statement.

Air is a mixture of many gases and dust particles. It is clear and transparent in nature which is used by living organisms for breathing. Air is a mixture of about 78% of Nitrogen, 21% of Oxygen, 0.9% of Argon, 0.04% of Carbon dioxide ($C{O_2}$) and many other small gases. All these form the air. Many gases are present in air and if we want to separate them and retain their properties then we easily do this. Air does not have a fixed melting and boiling point. Air does not have a specific formula. Air also contains water vapors at sea level.