An example of a grad-school level question?
Which of the statements is the most accurate in describing the chemical equation shown below? 2H_{2}(g) + O_{2}(g) -> 2H_{2}O(g) + energy

I just took a test in school today. What question was I asked?

Question I was asked: Which of the following properties provides the BEST way to identify a mineral?

Random question?

Alex looked at an electric toothbrush that had a plug with three metal prongs. Why are these prongs made out of metal?

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Question generated: Eye color is a physical trait. Which statement best explains why a child has a specific eye color?

Problem: Write a question you would see in a school textbook.

Answer: Planets remain in orbit around the Sun because of

Problem: Write a question you would see in a school textbook.

Answer:
Who was a leading authority on continental drift in the early 1900s?