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: Uneven heating of the Earth's surface can cause erosion.

Output: Uneven heating of the Earth's surface can cause what?


Input: Consider Input: Fact: arson can change an ecosystem drastically.

Output: What can change an ecosystem drastically?


Input: Consider Input: Fact: Volcanic ash is not currently covering earth's atmosphere.


Output: Earth's atmosphere is not currently covered in what substance?