First let's look at the composition of the
atmosphere of Venus. Venus has an atmosphere that
is way over 90% CO2 (Carbon Dioxide).
That means that no human would survive because
we need to breathe oxygen.
Plants can grow in high CO2
conditions because they use CO2 for
photosynthesis -- in fact sometimes we pump
CO2 into greenhouses to help they grow
more. This would make plants slightly better off
on Venus. But I want to emphasize that although
their CO2 tolerance would make plants
better candidates than humans, there are other
factors (like very high temperature) that would
not make them good candidates to survive on
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