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Q&A How would lack of sunlight affect a human population?

Other than photosynthesis being an issue, if the Earth's surface became inhospitable and humans were forced to live underground, what biological changes would they be expected to go through to adap...

7 answers  ·  posted 10y ago by James Hunt‭  ·  last activity 6y ago by James Hunt‭

Question biology humans apocalypse post-apocalypse light