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Q&A How would humans eradicate an organism that can actively spread through Earth's atmosphere?

So let's say that an alien civilization that we have made enemies with decides to use an advanced non-lethal biological weapon on the Earth as a warning. The aliens, while not infamous for any tec...

3 answers  ·  posted 9y ago by System‭  ·  last activity 9y ago by System‭

Question biology reality-check apocalypse chemistry