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: Bears hibernate in winter because? Answer: the environment is colder and has less food.
[EX A]: seasonal changes are made in response to changes in the environment

[EX Q]: Question: Organisms exist only because of the energy from? Answer: our yellow dwarf.
[EX A]: the sun is the source of energy for life on Earth

[EX Q]: Question: Who is likeliest to overuse hot water? Answer: the Johnson family.
[EX A]:
a shower is a source of hot water for washing