ashleyshadowdem
contestada

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

Respuesta :

toltecavsmaya
78% nitrogen, 21% oxygen,

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

-Enjoy!=)

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