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: As sound waves get shorter their frequency 
 Answer: increase

A: As wavelength increases, frequency decreases.
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Q: Question: Twenty wolves recently left their pack for new territory. The smaller number of wolves in the pack means that the availability of food will be 
 Answer: greater

A: As the population increases, the food supply, or the supply of another necessary resource, may decrease.
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Q: Question: If Mona is creating a reaction using solid reactants and she increases the surface area of those reactants, what happens to the reaction rate? 
 Answer: increases

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