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Q&A What would happen if the oxygen levels decreased by 15 percent?

How would the human body be affected if the oxygen levels on Earth suddenly decreased by 15 percent? This is instant. Not over time. How would we adapt? Would some people die and some not?

5 answers  ·  posted 10y ago by CrazySlayaNinjaBear‭  ·  last activity 6y ago by CrazySlayaNinjaBear‭

Question biology humans oxygen