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: Most animals without backbones have a nervous system. 
Question: Which type of system do most animals without backbones have?
[A]: Nervous system.


[Q]: Fact: animal fur can help plants grow. 
Question: What can help plants grow?
[A]: Animal fur.


[Q]: Fact: Oil is formed by layers of sediment pushing down on bacteria. 
Question: Oil is formed by layers of sediment pushing down on what?
[A]:
bacteria.