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Q&A Is there dense, non flammable gas that I can cover the Earth in?

This question is related to Deadly, Heavier than Air Gas, and Is a world with two different types of air possible? but has several different criteria. I've also looked at https://chemistry.stackexc...

5 answers  ·  posted 7y ago by walrus‭  ·  last activity 5y ago by walrus‭

Question earth chemistry gas alternate-earth