18235 Air is a mixture of gases. CK 18232 Air is a mixture of several gases. Zifre 18239 Air is a mixture of various gases. CK 18230 Air is a mixture of gases that we cannot see. Zifre 1565741 As everyone knows, air is a mixture of gases. eastasiastudent 950166 Pungent fumes arose from the chemical mixture. darinmex