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

[EX Q]: Standard measurements in science are very important so that we can compare experimental data from one lab to another and make sure we all are talking about the same thing.
[EX A]: What in science are very important so that we can compare experimental data from one lab to another and make sure we all are talking about the same thing?

[EX Q]: The majority of human genes have two or more possible alleles.
[EX A]: How many possible alleles do the majority of human genes have?

[EX Q]: Insecticides are commonly used to control insect pests, but can have harmful effects on the environment.
[EX A]:
What are commonly used to control insect pests, but can have harmful effects on the environment?