Answer:
I would say its small population.
Explanation:
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Basically, the meteor caused there to be an increase of Carbon Dioxide, and less oxygen in the atmosphere :P I really hope this helps
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I'm pretty sure it's the Eichhornia crassipes. It is a water hyacinth, and it was overgrown in the Lake Victoria area.
Jupiter, Saturn, then Uranus
If you are doing this for edgen.uity the answer is all the above