How does the air we breath fit the definition of matter?

Question

can you put it simply?

Answer 1

matter is any chemical substance, compound, mixture or element in either solid, liquid or gas state. All matter is made of elements, which are made of protons, neutrons and electrons.

Air fits this definition because it is a mixture of oxygen, nitrogen and some other elements in gas state.

Answer 2

The air we breathe has mass (pressure- 14 psi- pounds per square inch) and takes up space.