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?"

Input: Consider Input: Fact: Gravitational pull causes alternative day cycles.

Output: What causes day and night?


Input: Consider Input: Fact: Being exposed to wind can cause soil to detach and move.

Output: What happens when soil is exposed to wind?


Input: Consider Input: Fact: the brain controls the reflex that is used to remove toxic material from the stomach before it is absorbed.


Output: What controls the reflex that removes toxic material from the stomach before it is absorbed?