Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[Q]: Question: What type of ecosystem do polar bears live in? Answer: arctic
[A]: Polar Bears. Thick fur and a layer of blubber keep polar bears warm in their Arctic ecosystem. Why do you think their fur is white? Why might it be an adaptation in an Arctic biome?.

[Q]: Question: What are broad explanations that are widely accepted as true? Answer: scientific theories
[A]: Scientific theories are broad explanations that are widely accepted as true. This is because they are supported by a great deal of evidence.

[Q]: Question: What is the term for the measure of the average kinetic energy of the particles in matter? Answer: temperature
[A]:
Temperature is a measure of the average kinetic energy of the particles in matter.