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 squirrel eats all of the acorns in a tree. The tree is empty, and the squirrel is still hungry, so? Answer: the squirrel leaves.
[A]: as the supply of food in an environment decreases , the population of animals in that environment will decrease


[Q]: Question: What weather phenomena can crack your windshield? Answer: ice precipitation.
[A]: precipitation is when hail fall from clouds to the ground


[Q]: Question: The mounds at the beach are made of? Answer: silica.
[A]:
sand dunes are made of sand