A stack diagram is a visual representation of the function calls and variables used in a program. It displays the function calls in a hierarchical manner, with the main function at the top and subsequent functions called below it. Each function call is represented by a stack frame, which contains information about the function's arguments, local variables, and return values. The stack diagram is useful for debugging and understanding how a program works, as it shows the flow of control and the values of variables at each stage of execution. It is commonly used in computer science and programming to visualize and analyze the behavior of programs. Using this presentation can help you to keep your audience engaged and interested throughout your presentation