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.

Question: Gills allow? Answer: flounder to intake oxygen.
gills are used for breathing water by aquatic animals

Question: What has a positive impact on body strength? Answer: active physical effort.
exercise has a positive impact on a body 's strength

Question: What happens when available water decreases in an environment? Answer: dry spell.

drought means available water decreases in an environment