instruction:
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:
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.
answer:
if an organism dies then the population of that organism will decrease


question:
Question: A person is in the forest, lost. They need to signal to others that they are there, and their voice is gone, so they need to do it inaudibly. The person may signal with? Answer: fire.
answer:
fire gives off light


question:
Question: If an electromagnet is active then a nail touching it will become what? Answer: reactively charged.
answer:

if battery in an electromagnet is active then the nail in the electromagnet will become magnetic