In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: Which statement best describes the Law of Superposition? Answer: In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.

A: The law of superposition is best described by: in undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.
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Q: Question: What type of acid is often used as a preservative for acidic foods such as fruit juices? Answer: benzoic acid

A: Benzoic acid type of acid is often used as a preservative for acidic foods such as fruit juices.
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Q: Question: What are groups of stars called that are smaller than a galaxy? Answer: star clusters

A:
Star clusters are groups of stars called that are smaller than a galaxy.
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