Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

Q: Fact: comparators, flats, and microscopes could be used for observing materials up close. 
Question: comparators, flats, and microscopes could be used for observing materials how?

A: up close.
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Q: Fact: If something is outside during the day then that thing will receive sun. 
Question: When does something receive sun?

A: during the day.
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Q: Fact: ears made of cartilage. 
Question: What are ears made of?

A:
cartilage.
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