In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

[EX Q]: Question: One type of electrical circuit that requires a switch could be? Answer: dimming table lights.
[EX A]: when a switch in a simple series circuit is closed , electricity will flow through the circuit

[EX Q]: Question: If you see a mushroom on an old decaying log, its because a mushroom is a decomposer, which gets its food from? Answer: non-alive things.
[EX A]: dead organisms are the source of nutrients for decomposers

[EX Q]: Question: If an organism dies then the population of that organism will what? Answer: lessen.
[EX A]:
if an organism dies then the population of that organism will decrease