An example of a grad-school level question?
Generally, the deeper rock layers of Earth are older than shallower rock layers. How can the collision of two tectonic plates change the order of the rock layers?

An example of a grad-school level question?
A family installs a new heating system in their home. Which is the most desirable result of the new heating system?

An example of a grad-school level question?
What would be the result of adding one proton to an atom?

An example of a grad-school level question?
Rocks and Earth and on the Moon are made of similar materials. What does this observation most likely suggest?