instruction:
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.
question:
Fact: Coral Reefs are found in the salt water of the ocean. 
Question: what are found in the salt water of the ocean?
answer:
Coral Reefs.


question:
Fact: mammals can generate heat by muscle action. 
Question: What can mammals generate heat with?
answer:
Muscle action.


question:
Fact: A spectrum is formed by refraction of light by separating light into all different colors. 
Question: A spectrum is formed by refraction of light by separating light into all different what?
answer:

colors.