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The gas that forms 78% of the earth’s atmosphere is ______________.
  • a)
    nitrogen
  • b)
    oxygen
  • c)
    carbon dioxide
  • d)
    sulphur dioxide
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The gas that forms 78% of the earth’s atmosphere is ____________...
Nitrogen is 78% of the air.
Oxygen is 21% of the air.
Carbon Dioxide is .04% of the air.
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The gas that forms 78% of the earth’s atmosphere is ______________.a)nitrogenb)oxygenc)carbon dioxided)sulphur dioxideCorrect answer is option 'A'. Can you explain this answer?
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