Explanation:
A routine or subroutine, also referred to as a function procedure and sub program is code called and executed anywhere in a program. FOr example a routine may be used to save a file or display the time. 
 
        
             
        
        
        
Hmmm...that is true 
Here a quizlet about if you need it!
https://quizlet.com/15207805/csci-241-flash-cards/
        
             
        
        
        
Answer:
By thinking of ways to create environment friendly products such as biodegradable water bottles
 
        
             
        
        
        
Answer:
Explanation:
The following class is written in Java. I created the entire Circle class with each of the methods and constructor as requested. I also created a tester class to create a circle object and call some of the methods. The output can be seen in the attached picture below for the tester class.
class Circle {
    double radius;
    public Circle(double radius) {
        this.radius = radius;
    }
    public double getRadius() {
        return radius;
    }
    public void resetRadius() {
        radius = 0;
    }
    public double calculateArea() {
        double square = Math.pow((Math.PI * radius), 2);
        return square;
    }
}