Answer the following questions: (a) List any two uses of air.
(b) How is air pollution harmful to us?

Explanation:

uses of air is for breathing,for plant to grow

and air pollution can cause global warming that is really harmful

(a) Uses of air

photosynthesis.

Supplier of energy.

Combustion

the correct answer on edgen is:

(c.) prevent the spread of communism.

i just took the test.

dude you should crop your image so only the question shows. but   can you explain it better