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Question generated: Before rock can become soil, it must undergo certain processes. One process in the formation of soil involves plants. How can plants chemically change rocks into soil?

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

Answer: To use energy from the Sun to power household appliances, the solar energy must be converted to

question: Write a question you would see in a school textbook. OPTIONS:
- Pb(NO_{3})_{2}(aq) + 2NaI(aq) -> PbI_{2}(s) + 2NaNO_{3}(aq)
- L_{2}N(aq) + SI(aq) -> L_{2}I(s) + SN(aq)
- Pb_{2}N(aq) + NaI(aq) -> Pb_{2}I(s) NaN(aq)
- Fe(NO_{3})_{2}(aq) + 2NaI(aq) -> FeI_{2} + 2NaNO_{3}(aq)
answer: A solution of lead (II) nitrate reacts with a solution of sodium iodide to produce a yellow solid of lead (II) iodide and aqueous sodium nitrate. Which of these illustrates the reaction?

An example of a grad-school level question?
Turning off the light when leaving a room is an example of

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

Question I was asked: Which of the following is one reason that quartz is classified as a mineral?

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

Question I was asked:
Scientists study the current conditions of many solar system objects to gain insight into conditions early in the history of Earth. Which phenomenon most closely models current theories of early Earth?