Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: Absorption is the process by which the substances you consume are taken up by the blood.
[EX A]: What is the process by which the substances you consume are taken up by the blood?

[EX Q]: You call a substance that is not an acid or a base neutral.
[EX A]: What do you call a substance that is not an acid or a base?

[EX Q]: In the human body, the intersection where the paths for air and food cross is called pharynx.
[EX A]:
In the human body, what do you call the intersection where the paths for air and food cross.?