please help. me with. these c++ questions thank you

precedes the name of every function proto- type 1. The word and heading that does not return a value back to the calling routine. 2 Pass byindicates that a copy of the actual parameter is placed in the memory location of its corresponding formal parameter 3. parameters are found in the call to a function. 4. A prototype must give the may give their 5. A prototype indicates that the parameter will be passed by reference. 6. Functions that do not return a value are often called programming languages. 7. Pass by rather than just a copy of its valuc, is passed to the called function. 8. A call must have the of its actual parameters and must NOT have the of its formal parameters and Lafter a data type in the function heading and in the n other indicates that the location of an actual parameter, of those parsimeters 9. refers to the region of a program where a variable is active." 10, -parameters are found in the function heading. 11. Variables of a function that retain their value over multiple calls to the function are called 12. In C++ all functions have variables. scope 13. Default arguments are usually defined in the of the function. 14. A function returning a value should never use pass by parameters 15. Every function that begins with a data type in the heading, rather than the word void, must have a(n). statement somewhere, usually at the end, in its body of instructions. 16 A(n) is a program that tests a function by simply calling it 17. In C++ a block boundary is defined with a pair of 18. A(n) that a function was called properly 19. Default values are generally not given for pass by parameters. 20 is a dummy function that just indicates functions are functions that have the same name but a different parameter list