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: An object with a rough surface will have _____ friction than an object with a smooth surface. 
 Answer: more

A: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.
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Q: Question: Adam had a large larynx as a child, but after his larynx shrunk for some reason, his voice got 
 Answer: higher

A: The voice becomes deeper as the larynx in the throat grows larger.
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Q: Question: A _____ in the population cold lead to less food availability. 
 Answer: increase

A:
As the population increases, the food supply, or the supply of another necessary resource, may decrease.
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