Portuguese ⇄ Arabic Basque Bulgarian Catalan Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hungarian Irish Italian Latvian Lithuanian Maltese Norwegian Bokmål Polish Romanian Russian Slovak Slovene Spanish Swedish Turkish Ukrainian

composição da atmosfera
environ.	atmospheric composition The chemical abundance in the earth's atmosphere of its constituents including nitrogen, oxygen, argon, carbon dioxide, water vapour, ozone, neon, helium, krypton, methane, hydrogen and nitrous oxide