Variables 'a' in main function and 'a' in test function are using the same memory location, True or False?

#include <iostream> #include <cmath>   using namespace std;   // declare functions void display_menu(); void convert_temp(); double to_celsius(double fahrenheit); double to_fahrenheit(double celsius);   int main() {   cout << "Convert Temperatures\n\n";       display_menu();     char again = 'y';     while (again == 'y')      {         convert_temp();           cout << "Convert another temperature? (y/n): ";         cin >> again;         cout << endl;     }     cout << "Bye!\n"; }   // define functions void display_menu()  {     cout << "MENU\n"         << "1. Fahrenheit to Celsius\n"         << "2. Celsius to Fahrenheit\n\n"; }   void convert_temp()  {     int option;     cout << "Enter a menu option: ";     cin >> option;       double f = 0.0;     double c = 0.0;     switch (option)      {         case 1:             cout << "Enter degrees Fahrenheit: ";             cin >> f;               c =…

#include <iostream>#include <cmath>#include <iomanip>using namespace std; int main() {   double x;   double y;   double z;    cin >> x;   cin >> y;      /* Your code goes here */      cout << fixed << setprecision(1); // setprecision(1) outputs z with 1 decimal place.   cout << z << endl;    return 0;}   having trouble with this code in C++

#include<iostream> #include <cmath> using namespace std; int main() { float sp_Radius, sp_sa, sp_Volume; cout << "\nPlease Enter the radius of a Sphere = "; cin >> sp_Radius; sp_sa = 4 * M_PI * sp_Radius * sp_Radius; sp_Volume = (4.0/3) * M_PI * sp_Radius * sp_Radius * sp_Radius; cout << "\nThe Surface Area of a Sphere = " << sp_sa; cout << "\nThe Volume of a Sphere = " << sp_Volume; return 0; } C++ use this code and separate the program into three files. The main program containing the main function should be named main.cpp. The function definition file containing a function for the volume calculation and a function for the surface area calculation should be named SphereCalc.cpp. The function declaration file containing function declarations for the functions should be named SphereCalc.h. Make sure you include a Header Guard. Read the Radius from the Keyboard. If a negative number is provided, set the calculated value to zero.