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: Shane spent his live in the country and had no respiratory conditions, then moved to the city and had several develop. Shane's conditions are likely due to being 
 Answer: close to a city

A: Certain respiratory conditions can be made worse in people who live closer to or in large cites.
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Q: Question: Dwayne Johnson is weaker than Kevin Hart because he exercises less and therefore his muscles have grown 
 Answer: smaller.

A: Exercising muscles increases their size, and bigger muscles have greater strength.
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Q: Question: Eric removed more and more reactants from his mixture. The reaction rate will now be 
 Answer: slower

A:
Therefore, increasing the surface area of solid reactants increases the reaction rate.
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