 Mubvunzo ndewokuti: Mukutaura kweNyika, rinoreva chimwe kana kuti zvikamu zvikuru zvose zveGungwa reNyika yepasi ivo vari, mukutevedza kunodzikira kwenharaunda, Pacific, Atlantic, Indian, Southern Antarctic, uye Arctic Oceans? Nyaya yacho iOcean.makungwa emusikirwo mangani ari pasi pano? 