Air yigama inhlanganisela amagesi ezakha emkhathini . Air yakhiwa ngokuyinhloko nitrogen , umoya-mpilo, argon , okuyinto ndawonye eziyimisebenzi iningi amagesi umkhathi . Amagesi asele incluem1 greenhouse gases ezifana umhwamuko, carbon dioxide , i-methane , i-nitrous oxide , futhi ozone . Elicwengekileyo air aqukethe iminonjana namanye amakhemikhali eziningana . Izinto eziningi ezingokwemvelo ezilwa kufanele zibe khona okuncane in a isampula air unfiltered , kuhlanganise uthuli , impova ezinhlamvu , umlotha wentaba-mlilo , fluorine compounds , metallic mercury nesibabule anezela ezifana sulphur dioxide . Le-athikhili iyisigcino (isiNgisi: "a stub"). Ungakwazi ukusiza uWikipedia: ngokuyikhulisa.