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

Example Input: Passage: Resistance is the property that determines the amount of current flow through a particular material. Answer: resistance
Example Output: What is the property that determines the amount of current flow through a particular material?

Example Input: Passage: The atmosphere is a crucial part of the water cycle. It is an important reservoir for water, and the source of precipitation. Answer: the atmosphere
Example Output: What is the source of precipitation?

Example Input: Passage: The only light that people can see is called visible light . It refers to a very narrow range of wavelengths in the electromagnetic spectrum that falls between infrared light and ultraviolet light. Within the visible range, we see light of different wavelengths as different colors of light, from red light, which has the longest wavelength, to violet light, which has the shortest wavelength. You can see the spectrum of colors of visible light in Figure below . When all of the wavelengths are combined, as they are in sunlight, visible light appears white. You can learn more about visible light in the chapter "Visible Light" and at the URL below. Answer: infrared light and ultraviolet light
Example Output:
Where does visible light fall in between on the electromagnetic spectrum?