Mweya watinofema wakaumbwa nemagasi anoti: nitrogen; oxygen; carbon dioxide; munyonhi; nemagasi nharangani. Nitrogen ndiyo ins huwandu hwemakumi masere nemapfumbamwe kubva pazana (79%). Oxygen ine 20%, hwemakumi maviri kubva pazana. Magasi Nharangani anoonekera pakuti haana munhuwi, haana ruvara uye ane hatomu nyaumwe - monoatomic. Magasi nharangani anosanganisira: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn). Shoko rokuti nharangani rinodudzira chinhu chisingawanikwi nhando - rare, scarce. Mweya wakakomberedza kana mweya wakapoteredza (ambient air) zvinoreva mweya uri munharaunda yakamborerera nzvimbo iri kucherechedzwa. Basotho vanoti moea (wind,air) kureva mhepo kana mweya. Baila vanoti umwela (n. air) kureva mhepo kana mweya.