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

[EX Q]: Negative growth rate results when birth rates fall even lower than death rates.
[EX A]: What results when birth rates fall even lower than death rates?

[EX Q]: In circles way do particles of water move in deep water.
[EX A]: In which way do particles of water move in deep water?

[EX Q]: Venus is the only planet that rotates clockwise as viewed from its north pole.
[EX A]:
What is the only planet that rotates clockwise as viewed from its north pole?