Question

what is air??

a. a pure substance
b. a mixture
c. a compound of nitrogen and oxygen

d. a compound of carbon dioxide and oxygen
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Answer 1

Explanation:

b. a mixture plz follow me

Answer 2

Answer:

a mixture

Explanation:

Air is the general name for the mixture of gases that makes up the Earth's atmosphere. This gas is primarily nitrogen (78%), mixed with oxygen (21%), water vapor (variable), argon (0.9%), carbon dioxide (0.04%), and trace gases.