TASK DEFINITION: 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.
PROBLEM: Fact: all vertebrates have jaws. 
Question: what do all vertebrates have?

SOLUTION: jaws.

PROBLEM: Fact: temperature can change the state of matter. 
Question: What can change the state of matter?

SOLUTION: temperature.

PROBLEM: Fact: Cutting down plants has a negative impact on the ecosystem. 
Question: Doing what to plants has a negative impact on the ecosystem?

SOLUTION:
cutting them down.