Worldbuilding

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 Popular Question
Question with 1,000 views. This badge can be awarded multiple times.

earned this badge 3 times.
How could the earth produce more oxygen?
Awarded Feb 13 at 3:05
Would an asteroid of similar size to the one that hit 65 million years ago cause humans to go extinct?
Awarded Jan 3 '18 at 16:11
What non-arachnid animal would be capable of spinning a web?
Awarded Oct 3 '17 at 9:30

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