An example of a grad-school level question?
Which event would most likely result in more food for organisms that are scavengers?

An example of a grad-school level question?
In addition to oxygen, which gases make up the largest percentage of Earth's atmosphere?

An example of a grad-school level question?
Students are investigating which type of fruit attracts the most fruit flies. Equally sized pieces of ripe apple, peach, and banana are placed in separate containers. The containers allow fruit flies to enter, but the fruit flies are unable to escape. The containers are placed outside on a picnic table for two days. The most reliable method for collecting data is to count the number of fruit flies

An example of a grad-school level question?
Which is an example of a chemical reaction?