In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Q: Question: Keely had just run a mile and was now running slower to _____ _____. 
 Answer: cool down

A: When particles move more slowly, temperature is lower and an object feels cooler.
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Q: Question: If Mona increases the temperature of her stove while cooking a roast, what happens to the amount of energy being used? 
 Answer: increases

A: The temperature of matter increases with the added energy.
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Q: Question: Michael is studying the air quality of various cities. He finds that there are many more pollutants in the air in Mexico City, than there are in the air of Chicago. Therefore, the air quality will be higher in 
 Answer: Chicago

A:
More pollutants mean poorer air quality.
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