Activity for AdamO‭

Type	On...	Excerpt	Status	Date
Question	—	What type of chemical catastrophic event might reduce the bioavailability of iron? I am imagining a world where an astronomical event occurs, like Earth collides with a comet, and humanity is all but wiped out. In their desperate attempt to recover, humans enter a form of stone age. Most of the existing life forms are still there, though also decimated by the event. Modern humans a... (more)	—	over 5 years ago