Given a scientific question, generate a correct answer to it.

[EX Q]: The urethra transports urine from what organ to the outside of the body for disposal?
[EX A]: bladder

[EX Q]: For most of a star's life, hydrogen atoms fuse to form what?
[EX A]: helium atoms

[EX Q]: What is defined as the product of a force times the distance over which the force acts?
[EX A]:
work