local variables
internal variables
external variable
global variables
int
unsigned
finds hypotenuse of triangle with sides a + 2 and b+3
finds square root of (a + 2)2 + (b + 3)2
is meaningless
finds square root of 3*a + 4*b + 5
cannot be initialized
is initialized once at the commencement of execution and cannot be changed at run time
retains its value throughout the file of the program
is same as an automatic variable but is placed at the head of a program
beginning of the program
that certain information about mathematical library functions are to be included at the begnning of the program
none of these