An example of a grad-school level question?
A radio station broadcasting across a large area is experiencing thunderstorms. How will the radio waves from the station be affected?

An example of a grad-school level question?
The wheels and gears of a machine are greased in order to decrease

An example of a grad-school level question?
Which two body systems are involved in inhaling oxygen and exhaling carbon dioxide?

An example of a grad-school level question?
A science class investigated the percentage of corn kernels that pop in bags of different brands of popcorn. Fifteen students tested three brands of popcorn each and reported their results to the class. Why did the teacher most likely have so many students report the results?