adasia22
adasia22 adasia22
  • 18-01-2019
  • Biology
contestada

the gas that makes up about 21 percent of the atmosphere is ?

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Faithbar5 Faithbar5
  • 18-01-2019

the gas that makes up 21 percent of the atmosphere is oxygen

Answer Link
jasmynromerop7b6jf jasmynromerop7b6jf
  • 18-01-2019
the gas that makes up about 21% of the atmosphere is oxygen !
Answer Link

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