It's about 78% nitrogen and 21% oxygen

Crossword clue · 1 known answers · 1 appearances · Last seen in the NYT Midi crossword on May 22, 2026
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AIR
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The clue “It's about 78% nitrogen and 21% oxygen” has appeared 1 times in our database with 1 different answers, so count the squares in your grid and check the crossings before you commit. Most recently it ran in the NYT Midi crossword on May 22, 2026, where the answer was AIR.

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