An example of a grad-school level question?
Which of these is a nonliving part of a forest?

An example of a grad-school level question?
A meeting of scientists, called a symposium, occurs every year to share recent research about the atmosphere of Earth. This symposium mainly serves which purpose in science?

An example of a grad-school level question?
In a laboratory activity, four different types of rock were placed in identical acid solutions for one week. Each sample was then measured to see if any of the rock mass was dissolved by the acid solution. Which is the dependent (responding) variable in this activity?

An example of a grad-school level question?
Why is it important to have a large sample size in an investigation?