ajwoklib8132 ajwoklib8132
  • 08-10-2021
  • Chemistry
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what is the second most abundant gas in the atmosphere

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haliehummer20
haliehummer20 haliehummer20
  • 08-10-2021
Oxygen is the second. The first is nitrogen which makes up 78% of air. Oxygen makes up 21% of air.
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