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.

Example Input: Question: Dwayne Johnson is weaker than Kevin Hart because he exercises less and therefore his muscles have grown 
 Answer: smaller.
Example Output: Exercising muscles increases their size, and bigger muscles have greater strength.

Example Input: Question: When you use less force to move a car it will 
 Answer: move less
Example Output: When two skateboarders push against each other, it causes them to move apart. The harder they push together, the farther apart they move.

Example Input: Question: Will plays with an adjustable ramp for his cars. He sets the angle at 25 degrees and then at 15 degrees. Which ramp angle requires less input force on the cars? 
 Answer: 15 degrees
Example Output:
The more gradual the slope of the inclined plane, the less input force is needed and the greater the mechanical advantage.