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: nails prevent water loss. 
Question: what do nails prevent?

SOLUTION: water loss.

PROBLEM: Fact: Heating with coal can cause air pollution. 
Question: Heating with coal can cause?

SOLUTION: air pollution.

PROBLEM: Fact: Pushing on bike pedals cause the bike to overcome inertia. 
Question: What must be overcome when pushing on bike pedals?

SOLUTION:
inertia.