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Q&A What would happen if part of the nitrogen in the atmosphere were replaced with another gas?

I have this planet in my story that is similar to Earth in many ways. It is inhabited by humans, the flora and fauna are similar, the atmosphere is similar... except not quite. On Earth, the atmos...

1 answer  ·  posted 7y ago by Lars‭  ·  last activity 7y ago by Lars‭

Question environment atmosphere