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             There are many different kinds of barriers. The following are examples 
              of barriers that can be found alone or combined with others: 
             
             
              :: A natural barrier is 
              a geographical accident that blocks or restricts your passage, such 
              as a river, a chain of mountains or a cliff. 
              
             
               
              :: 
              A communication barrier is anything that hinders communication 
              between persons and emission or reception of messages, such as someone 
              speaking on the phone in a different language. 
              
             
               
              :: An architectural barrier is 
              an obstacle that restricts access to and use of an area and its 
              facilities.  
              
             
               
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