A number of  generally accepted geographical problems, like the causes of acid rains or  global warming, can be viewed from different aspects. Like geographers,  geography teachers have to introduce students to these viewpoints and help them  find their way about in the information blocks thus allowing them to understand  and appreciate different opinions. 
          In order to do  this, the teacher should follow the actual geographical events and has to be  familiar with the current changes of their environment along with the natural  and social alterations. 
          
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