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: A stream going down a mountain will have to do _____ cutting. 
 Answer: much

A: In erosion, the higher the elevation, the farther the stream is from where it will reach base level and the more cutting it has to do.
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Q: Question: When Katie was in the hospital with low blood pressure, she understood that the volume of her blood was 
 Answer: low

A: As blood volume in the body increases, blood pressure increases.
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Q: Question: Eric moved to Alaska from Arizona. The lower temperatures overall mean that sound travels 
 Answer: slower

A:
For a given medium, sound waves travel more slowly at lower temperatures.
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