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

[Q]: When gas particles heat up, pressure increase.
[A]: Does pressure increase or decrease when gas particles heat up?


[Q]: Clear mucus is secreted before ejaculation to neutralize acidic urine remaining in the urethra.
[A]: What is secreted before ejaculation to neutralize acidic urine remaining in the urethra?


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