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?"

Example Input: Fact: Some viruses have an envelope of enzymes and proteins.
Example Output: What might have an envelope of proteins and enzymes?

Example Input: Fact: Gasoline releases organic compounds when it separates.
Example Output: What does gasoline release when it separates?

Example Input: Fact: if an object in a fluid is more dense than that fluid then that object will sink in that fluid because of the weakest of the natural forces.
Example Output:
what will cause a denser fluid to sink in another fluid?