Question

Air is a mixture?prove this sentence
please answer this question​

Answer 1

Answer:

Air is a mixture of about 78% of Nitrogen, 21% of Oxygen, 0.9% of Argon, 0.04% of Carbon dioxide (CO2) 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 also contains water vapors at sea level.

Answer 2

Answer:

a substance made of two or more materials having it in any proportion