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.

[EX Q]: Fact: Sporangia produce spores that develop into green, photosynthetic gametophytes. 
Question: Sporangia produce spores that develop into what gametophytes?
[EX A]: green photosynthetic.

[EX Q]: Fact: Flowers form on the stoma. 
Question: Flowers form on the?
[EX A]: stoma.

[EX Q]: Fact: Volcanic ash blocks the sun and cools the air. 
Question: Why does it get colder when volcanic ash is in the air?
[EX A]:
It blocks the sun.