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

[Q]: Passage: Lipids are biochemical compounds such as fats and oils. Organisms use lipids to store energy. In addition to carbon and hydrogen, lipids contain oxygen. Answer: oils
[A]: Lipids are biochemical compounds such as fats and?

[Q]: Passage: There are multiple ways to prevent these situations from occurring. The three most common protective devices are fuses, circuit breakers, and surge protectors. Answer: fuses, circuit breaks & surge protectors
[A]: What are the three most common protective devices?

[Q]: Passage: Methane has a three-dimensional, tetrahedral structure. Answer: three dimensional tetrahedra
[A]:
What structure does methane have?