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?"

Ex Input:
Fact: Trees grow for paper to be made.

Ex Output:
What needs to grow for paper to be made?


Ex Input:
Fact: Acid rain has a negative impact on H20 quality.

Ex Output:
What has a negative impact on H20 quality?


Ex Input:
Fact: evaporation can be used for separating a solute from Water.

Ex Output:

Evaporation can be used for separating a solute from?