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: large animals that roamed the earth were replaced with mammals after their extinction. 
Question: large animals that roamed the earth were replaced with what after their extinction?
[EX A]: mammals.

[EX Q]: Fact: when an earthquake causes the ground to shake, this shaking can damage buildings. 
Question: How do earthquakes cause damage to buildings?
[EX A]: The shaking of the ground causes damage to buildings.

[EX Q]: Fact: frogs have a relatively complex circulatory system with a three-chambered heart. 
Question: What has a relatively complex circulatory system with a three-chambered heart?
[EX A]:
frogs.