An example of a grad-school level question?
Which invention made mass production possible?

An example of a grad-school level question?
Decomposers are organisms that eat and break down dead plant and animal material. Which organism is a decomposer?

An example of a grad-school level question?
Offshore oil platforms affect ocean habitats. An ocean environment is most likely damaged by an offshore oil platform because

An example of a grad-school level question?
Which physical characteristic do some organisms have that helps them survive in the Arctic?