An example of a grad-school level question?
The hormone insulin is secreted by the pancreas. Which activity is most likely to trigger an increase in the levels of insulin circulating in the blood?

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

Question I was asked: Which mixture can be easily separated by adding water and pouring it through a coffee filter?

Random question?

Students conducted an investigation with green bananas. They hypothesized that an onion placed near a banana could increase the rate at which the banana ripened. They placed one onion and one banana in each of three containers. In a fourth container they placed a banana, but no onion. Which statement best explains why the onion was left out of the fourth container?

Generate a question

Question generated: The chemical formula for water is H_{2}O. What does the formula show about each element in the compound?

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

Answer: The cheetah population around the world has decreased because of poaching and loss of habitat. The surviving population is found to have similar alleles. Which factor is endangering the species' survival the most?

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

Answer:
Which process must occur for clouds to form?