Air is the most important need of our bodies. We can only last a few minutes without it.
What is air?
At the simplest level, here on planet earth, it is also known as the atmosphere and is a mixture of nitrogen (78%), oxygen (21%), argon (1%), carbon dioxide (0.03%) and minute traces of neon, helium, methane, krypton, hydrogen, xenon, and ozone. The atmosphere protects earth’s life forms from harmful radiation and cosmic debris. The ozone layer also protects the earth from the sun’s harmful ultraviolet rays.