#need oxygen

The air we breathe contains 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, and small amounts of other gases. Most commerical oxygen is producing using the cryogenic distillation process. This process produces oxygen that is 99+ pure. In this, the gas plant takes in air from the atmosphere into a compresser and pass it through a chamber which decreases its temperature up to -200°C. New from is…

About a thousand years ago, the level of oxygen in the atmosphere was very high. No human being died due to scarcity of oxygen at that time! The main reason was – Trees! Entire planet Earth was covered with trees at that time. But, since the past 200 years, about 150 million acres of forest have been cut down by humans for beneficial use. And this is being continued till now! But, nature played…

kids: santa...?