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.

[Q]: Question: A ball rolling over carpet will go ______ than a ball rolling over concrete.? Answer: slower.
[A]: as the roughness of something increases , the friction of that something will increase when its surface moves against another surface


[Q]: Question: Jackrabbits live in very hot environments, but are able to stay cool because their long ears help? Answer: releasing warmth.
[A]: long ears are used for releasing heat by a jackrabbit


[Q]: Question: The population of zebras is stagnant due to a lack of new baby zebras, what will happen over time to the community without support? Answer: shrinkage.
[A]:
if an organism dies then the population of that organism will decrease