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maddyjolobot maddyjolobot
  • 19-02-2017
  • Biology
Answered

Which of these is not one of the primary gases found in Earth's atmosphere?

helium

nitrogen

oxygen

carbon dioxide

Verified Answer :

worldlyy
worldlyy worldlyy
  • 19-02-2017

The answer is Helium

Answer Link
litaltwizer litaltwizer
  • 19-02-2017

The answer should be helium

Answer Link

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