Question

write a short note on prevention of air pollution ?

Answer 1

Air is essential for all humans, flora and fauna and other organisms. Its importance can be estimated by the fact that humans can survive without food and water for a few days, but without the air it is impossible to survive. The air is 80 percent of what a man takes on the day. It is known that every day man breathes 22,000 times a day. Thus, every day he receives 16 kilograms of air. Air is a mixture of various gases in which nitrogen content is 78 percent, while 21 percent is oxygen and 0.03 percent carbon dioxide is found and the remaining 0.97 percent contains hydrogen, helium, argon, neon, krypton, xenon, ozone and water vapour.