Scope of Variable in .Net

The scope of an element in code is all the code that can refer to it without qualifying it's name. Stated other way, an element's scope is it's accessibility in code.
Scope is normally used when writing large programs as large programs divide code into different classes, modules, etc. Also, scope prevents the chance of code referring to the wrong item.
The different kinds of scope available in VB .NET are as follows:
Block Scope: The element declared is available only within the code block in which it is declared.
Procedure Scope: The element declared is available only within the procedure in which it is declared.
Module Scope: The element is available to all code within the module and class in which it is declared.
Namespace Scope: The element declared is available to all code in the namespace.