TASK DEFINITION: Given a scientific passage and an answer, generate a question for the given answer.
PROBLEM: Passage: Some resources can't be renewed. At least, they can't be renewed fast enough to keep up with use. Fossil fuels are an example. It takes millions of years for them to form. We are using them up much more quickly. Elements that are used to produce nuclear power are also non-renewable resources. Uranium, for example, which is rare. Sooner or later, it will run out. Answer: nuclear

SOLUTION: Uranium is an example of a non-renewable resource used to produce what type of power?

PROBLEM: Passage: What does sunshine have to do with sleep (other than the sun shining in your eyes and waking you up)? For many people, sleeping problems have to do with an amine that the brain makes called melatonin. This compound affects the sleep-wake cycle and is affected by sunlight. During the winter, the daily cycle of melatonin production may be affected by less sunlight hours. If this cycle is changed, the person may have trouble sleeping. Melatonin supplements are available in pharmacies and health food stores and may be of help for those with sleeping problems. Answer: melatonin

SOLUTION: During the winter, production of what amine involved in the sleep-wake cycle may be affected by less sunlight hours?

PROBLEM: Passage: Magma can be created when temperature rises, pressure lowers, or water is added. Answer: water

SOLUTION:
Magma can be created when temperature rises, pressure lowers, or what else is added?