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: A balance is used to measure the what of  a substance? Answer: heaviness.
answer:
a balance is used for measuring weight of a substance


question:
Question: A toad would have better hiding places? Answer: on a forest floor.
answer:
camouflage is used for hiding by animals against predators


question:
Question: A ball is tossed to a person who misses it and is unable to catch it so? Answer: it falls.
answer:

dropping something causes that something to fall