D. mixture
The air we breathe is a mixture of different gases, primarily nitrogen and oxygen, along with smaller amounts of other gases like argon, carbon dioxide, and trace gases. It is not an element, liquid, or compound.
The air we breathe contains different individual gases (mostly nitrogen and oxygen). Which of the following correctly describes the air we breathe?
A.
element
B.
liquid
C.
compound
D.
mixture
1 answer