Turn the given fact into a question by a simple rearrangement of words. This typically involves replacing some part of the given fact with a WH word. For example, replacing the subject of the provided fact with the word "what" can form a valid question. Don't be creative! You just need to rearrange the words to turn the fact into a question - easy! Don't just randomly remove a word from the given fact to form a question. Remember that your question must evaluate scientific understanding. Pick a word or a phrase in the given fact to be the correct answer, then make the rest of the question. You can also form a question without any WH words. For example, "A radio converts electricity into?"

[Q]: Fact: wood ducks can feed at more than one trophic level.
[A]: What can feed at more than one trophic level?


[Q]: Fact: Being exposed to wind can cause erosion of dirt.
[A]: Being exposed to what can cause erosion of dirt?


[Q]: Fact: Guard cells determine the water loss.
[A]:
What determines water loss?