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Q&A Producing oxygen without plants

Obviously, current oxygen levels should last us years, so we are talking about a long-term solution. Also, in this hypothetical scenario, plants have stopped releasing oxygen but haven't stop prod...

6 answers  ·  posted 6y ago by A.V. Arno‭  ·  last activity 6y ago by A.V. Arno‭

Question atmosphere flora oxygen ecology