An example of a grad-school level question?
While a sailor was out fishing, he got lost at sea. Which object would help him direct the boat back to shore?

An example of a grad-school level question?
A manufacturing industry has asked to relocate its plant to your town. From an environmental perspective, which question is least important to ask before deciding whether the industry may move to your town?

An example of a grad-school level question?
Which of the following is formed immediately after fertilization?

An example of a grad-school level question?
Which action involving a pulley system requires the least amount of force?