An example of a grad-school level question?
If a solid object is taken from Earth far into space, which of the following measurements of the object will change most?

An example of a grad-school level question?
Growth and activities of organisms can speed up the chemical weathering of rocks. Which organisms naturally cause most of the chemical weathering of rocks?

An example of a grad-school level question?
A research scientist repeatedly observes a bird avoiding a specific butterfly species even  though it eats other types of butterflies. Which statement most likely explains the behavior of the bird?

An example of a grad-school level question?

What is the result of cellular respiration?