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

Input: Consider Input: Passage: The hard drive is a magnetic disc that provides long-term storage for programs and data. Answer: hard drive

Output: What device is a magnetic disc that provides long-term storage for programs and data?

Input: Consider Input: Passage: Nutrients are substances that the body needs for energy, building materials, and control of body processes. Carbohydrates, proteins, lipids, and water are nutrients needed in relatively large amounts. Vitamins and minerals are nutrients needed in much smaller amounts. Answer: nutrients

Output: What are substances that the body needs for energy, building materials, and control of body processes?

Input: Consider Input: Passage: Scientists may focus on very different aspects of the natural world. For example, some scientists focus on the world of tiny objects, such as atoms and molecules. Other scientists devote their attention to huge objects, such as the sun and other stars. But all scientists have at least one thing in common. They want to understand how and why things happen. Achieving this understanding is the goal of science. Answer: science
Output: The desire to understand how and why things happen is shared by all branches of what?