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

Example Input: Passage: Amphibians have permeable skin that easily absorbs substances from the environment. This may explain why they seem to be especially sensitive to pollution. Monitoring the health and survival of amphibians may help people detect pollution early, before other organisms are affected. Answer: amphibians
Example Output: What group of animals has permeable skin that makes them vulnerable to pollution?

Example Input: Passage: There are a variety of substances in foods that the body needs. Any substance in food that the body needs is called a nutrient. There are six major types of nutrients: carbohydrates, proteins, lipids, water, minerals, and vitamins. Carbohydrates, proteins, and lipids can be used for energy. Proteins also provide building materials. Proteins, minerals, and vitamins help control body processes. Water is needed by all cells just to stay alive. Answer: a nutrient
Example Output: What do you call any substance in food that the body needs?

Example Input: Passage: Archaea live everywhere on Earth, including extreme environments. Answer: everywhere
Example Output:
Where do archea live?