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: Bacteria in soil coverts atmospheric nitrogen into a form usable by flowers. 
Question: What converts nitrogen for flowers?
[A]: bacteria.


[Q]: Fact: if a pine falls then sunlight becomes available to the surrounding plants. 
Question: what provides more sunlight to surrounding plants by falling?
[A]: pine.


[Q]: Fact: Milk is nutritious because it has vitamin D and calcium. 
Question: What does cow milk have that makes it nutritious?
[A]:
Vitamin D.