Alfred001 Posted May 21, 2016 Posted May 21, 2016 Would it be possible for humans to survive in underground tunnels that were completely closed off from the surface with plants providing oxygen through photosynthesis from artificial light sources? Could plants even grow under ground?
StringJunky Posted May 21, 2016 Posted May 21, 2016 Would it be possible for humans to survive in underground tunnels that were completely closed off from the surface with plants providing oxygen through photosynthesis from artificial light sources? Could plants even grow under ground? http://www.sciencefocus.com/qa/how-many-plants-would-i-need-airtight-room-be-able-breathe
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