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: Ribosomes are sites where enzymes are made. 
Question: Ribosomes are sites where what?

A: enzymes are made.
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Q: Fact: Exercise can teach animals how to behave. 
Question: What can teach animals how to behave?

A: exercise.
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Q: Fact: Water stays on earth's surface because of gravitational pull. 
Question: What causes water to stay on earth's surface?

A:
Gravity.
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