Given a scientific passage and an answer, generate a question for the given answer.

Example Input: Passage: The way a mineral cleaves or fractures depends on the crystal structure of the mineral. Answer: the crystal structure
Example Output: The way a mineral cleaves or fractures depends on what part of the mineral?

Example Input: Passage: Scientists may publish articles about their research in peer-reviewed science journals. Peer review means that the work is analyzed by peers, in other words, by other scientists. The articles are published only if the other scientists are convinced that the research is accurate and honest. Answer: peer review
Example Output: What is the process where scientific articles are checked and analyzed by other scientists before publication?

Example Input: Passage: The Sun heats some areas more than others, which causes wind. The Sun's energy also drives the water cycle, which moves water over the surface of the Earth. Both wind and water power can be used as renewable resources. Answer: the water cycle
Example Output:
What is driven by the sun's energy and moves water over the surface of earth?