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: Certain countries make it illegal to bring in certain species of animals that breed very fast because that will lead to? Answer: overpopulation.
if the population of an organism increases then the ecosystem may become overpopulated with that organism

Question: A shoe seems gold and green at first, then at second glance looks blue and silver. This could be due to? Answer: refractions.
refraction causes something to look different

Question: A balance is used to measure the what of  a substance? Answer: heaviness.

a balance is used for measuring weight of a substance