An example of a grad-school level question?
Which layer of the atmosphere contains the greatest amount of water vapor?

An example of a grad-school level question?
Which is the best way a science student can help to maintain laboratory equipment?

An example of a grad-school level question?
Genetically modified plants with new characteristics have been produced through genetic engineering methods. What impacts have resulted from the use of genetically modified plants?

An example of a grad-school level question?
The sound, light, and heat that a firecracker produces are originally stored as which type of energy?