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.

[EX Q]: Question: When you use less force to move a car it will 
 Answer: move less
[EX A]: When two skateboarders push against each other, it causes them to move apart. The harder they push together, the farther apart they move.

[EX Q]: Question: If you spend a lot of time working out your muscles will be 
 Answer: larger
[EX A]: When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.

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