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: If there were less dissolved carbon dioxide in ocean water, the ocean's rate of acidity would 
 Answer: decrease
[A]: With higher levels of dissolved carbon dioxide in ocean water, the water becomes more acidic.


[Q]: Question: If Mary is playing music in her room and the heater stops working, causing the temperature to fall, what happens to the speed of the soundwaves her radio is generating? 
 Answer: decreases
[A]: For a given medium, sound has a slower speed at lower temperatures.


[Q]: Question: A stream in a state with a higher average elevation will have to do _____ cutting to reach base level that in a state with a lower average elevation. 
 Answer: more
[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.