Multiple choice general knowledge math & puzzles

Nitrogen constitutes what percentage of the atmosphere?

  1. 0.79

  2. 0.42

  3. 0.56

  4. 0.18
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A Correct answer
Explanation

Nitrogen makes up approximately 78% to 79% of the Earth's atmosphere by volume. The value 0.79 represents the fractional equivalent (79%). Oxygen accounts for about 21%, with other gases making up the remainder.

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