10 Useful facts you must know about Air
1. Air is a mixture of gases containing nitrogen (78{070d54550ee076f6d7b8749188f54c77e5ed136fd0d2e1e256b0e7cf06ef500c}), oxygen (21{070d54550ee076f6d7b8749188f54c77e5ed136fd0d2e1e256b0e7cf06ef500c}), and water vapour, dust particles and other gases (1 {070d54550ee076f6d7b8749188f54c77e5ed136fd0d2e1e256b0e7cf06ef500c}).n2. Air occupies space. It also has weight.n3. Air exerts pressure in all directions.n4. Air can be compressed.n5. One-fifth of the air is oxygen. Oxygen is necessary for combustion and […]nThe post 10 Useful facts you must know about Air appeared first on G&B Environmental.