78% helium, 21% oxygen, 1% carbon monoxide, rest: rare gases |
78% nitrogen, 21% oxygen, 1% carbon monoxide, rest: rare gases |
78% helium, 21% oxygen, 0,03% carbon dioxide, rest: rare gases |
78% nitrogen, 21% oxygen, 0,03% carbon dioxide, rest: rare gases |
QuizVds.it - Facebook - Contattaci - Blog - Donazione - Cookie Policy - Privacy Policy - Termini e condizioni - Partner