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.

Input: Consider Input: Question: Convection is caused by uneven what? Answer: warmness distribution.

Output: uneven heating causes convection


Input: Consider Input: Question: Why are there more deer when there's a lot of rain? Answer: abundant water means more vegetation.

Output: the increase of something required by an organism has a positive impact on that organism 's survival


Input: Consider Input: Question: What is an example that ecosystems are an interconnected world? Answer: animals' numbers decreasing when food decreases.


Output: as the supply of food in an environment decreases , the population of animals in that environment will decrease