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At 480 Kilometres In Length, What Is The Longest River That Runs Entirely Within The Balkan Peninsula? It Flows Through Plovdiv And Discharges Into The Aegean Sea Near The Border Between Greece And Turkey.'''

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The Online Quiz League (UK) is a well known weekly team quiz league. 


1. At 480 Kilometres In Length, What Is The Longest River That Runs Entirely Within The Balkan Peninsula? It Flows Through Plovdiv And Discharges Into The Aegean Sea Near The Border Between Greece And Turkey.'''





 
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