How much of Earth's atmosphere is made up of nitrogen and oxygen?

A. 100 percent

B. Between 25 and 75 percent

C. Close to 99 percent

D. Less than 1 percent

Question

Haley Brooks

24 November, 12:21

+2

Answers (2)

Know the Answer?

Alison Levy · Answer 1

78% nitrogen, 21% oxygen,

Good luck

Peyton Durham · Answer 2

C: close to 99% percent because it is made up of 78% nitrogen and 21% oxygen.

-Enjoy!=)

How much of Earth's atmosphere is made up of nitrogen and oxygen?A. 100 percentB. Between 25 and 75 percentC. Close to 99 percentD. Less than 1 percent