Question

Most of Earth’s dry air is made up of
A. carbon dioxide and oxygen.

B. nitrogen and argon.

C. nitrogen and oxygen.

D. oxygen and argon.

Answer 1

C. nitrogen and Oxygen.

Answer 2

I believe the correct answer from the choices listed above is option C. Most of Earth’s dry air is made up of nitrogen and oxygen. Approximately, air is made up of 21 percent of oxygen and 79 percent of nitrogen. Hope this answers the question. Have a nice day.