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 planet is closest to the sun? Answer: mercury

A: Mercury is closest to the sun.
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Q: Question: What are structures that protect the coast like barrier islands called? Answer: breakwaters

A: Structures that protect the coast like barrier islands are called breakwaters.
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Q: Question: What astronomical phenomenon, formed of split asteroids or planetary rocks, provides clues about our solar system? Answer: meteorites

A:
Meteorites, formed of split asteroids or planetary rocks, provide clues about our solar system.
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