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: What causes orbits? Answer: planetary pull.
answer:
gravity causes orbits

question:
Question: An attractive woman got her eye color via? Answer: chromosomes.
answer:
DNA is a vehicle for passing inherited characteristics from parent to offspring

question:
Question: Landfills can cause? Answer: bad odors.
answer:
an landfill is a source of pollution