Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Water leaves ponds and lakes through evaporation and also as outflow.
[A]: Water leaves ponds and lakes through evaporation and also as what?


[Q]: Instead of heat, organisms use catalysis to speed up reactions.
[A]: Instead of heat, organisms use what to speed up reactions?


[Q]: Human evolution shows that evolutionary changes typically occur at a slow pace.
[A]:
Human evolution shows that evolutionary changes typically occur at what pace?