Crossword puzzle clue "nitrogen or helium"

Here are the possible solutions for nitrogen or helium clue

Answer
Clue
Relevancy
gas
Clue
Nitrogen or helium
Helium or nitrogen, for example
Definition
a state of matter
gases
Clue
Helium and nitrogen, e.g.
Definition
GAS, to poison with gas
air
Clue
It's mostly nitrogen
It's mainly nitrogen
It's about 78% nitrogen
Mixture that is mostly nitrogen
It's roughly 78% nitrogen
Definition
the mixture of gases breathed by people and animals, also AYRE

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