What are the rules for a local and global variable?

1.	What are the rules for a local and global variable?
Answer» Variables at the Global Level: Global variables are variables declared outside of a function or in a global space. If a VARIABLE is ever given a new value within the function, it is implicitly local, and we must EXPLICITLY declare it as 'global.' We must declare a variable USING the global keyword to make it global. Any function can ACCESS and modify the value of global variables from anywhere in the programme. Variables in the Local Environment: A local variable is any variable declared within a function. This variable exists only in local space, not in global space. It's PRESUMED that a variable is local if it gets a new value anywhere in the function's body. Only the local body has access to local variables.

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