1.Write a recursive module Print_String_Backward that will behave just as the module from the previous problem except that it will print characters in reverse order, from the end of the string to the...

1.Write a recursive module Print_String_Backward that will behave just as the module from the previous problem except that it will print characters in reverse order, from the end of the string to the beginning. Use a recursive module that exploits the stack to do this. Do not build another copy of the string that stores the values in reverse order. 2. Do the same task as in Exercise 5.14 but use iteration, not recursion. This time, you may obtain items from one string and build another list that stores them in reverse order. Once this has been accomplished, Print_String from Exercise5.13 should be able to print the new list, effectively printing the original string in reverse order.