How is Karel programmed to handle multiple tasks in the provided functions?

Karel is programmed to handle multiple tasks by defining reusable functions. This approach allows various tasks to be broken down into smaller, manageable pieces of code, making it easier to implement, read, and maintain. When a function is defined, it can be called multiple times throughout the code, enabling Karel to perform complex sequences of actions without rewriting the commands each time. This promotes efficient coding practices, as developers can focus on creating individual functions that accomplish specific tasks—such as moving, turning, or placing beepers—and then integrate them as needed.

This modularity not only simplifies the overall structure of the program but also enhances reusability and clarity, allowing programmers to build upon existing functions for more complex operations.