ilikestudying140898
  • ilikestudying140898
Oxygen and nitrogen gases comprise ___ percent of the atmosphere by volume. 21 50 78 99
Biology
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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anonymous
  • anonymous
well, Oxygen comprises at 20.95%​ and Nitrogen at 78.08%
anonymous
  • anonymous
@Brrandyn
anonymous
  • anonymous
so not sure

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bringmetherain
  • bringmetherain
Hold on.
anonymous
  • anonymous
I think it is 99.
anonymous
  • anonymous
20.95%​ + 78.08% = 99.03
bringmetherain
  • bringmetherain
Yeah ^
anonymous
  • anonymous
answer is D.
Brrandyn
  • Brrandyn
Yes, Nitrogen and Oxygen comprises of nearly 99% of the Earth's atmosphere. D.
ilikestudying140898
  • ilikestudying140898
Thank you!!

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