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.

Fact: Heat is necessary for the survival of animals. 
Question: What is necessary for the survival of animals?
heat.

Fact: Seasonal changes affect the flowering of soybeans. 
Question: What affects the flowering of soybeans?
seasonal changes.

Fact: sight is the ability to sense rays or beams, and the eye is the organ that senses them. 
Question: what is the eye able to sense?

rays or beams.