<span>The Columbian Exchange refers to a period of cultural and biological exchanges between the New and Old Worlds.  Exchanges of plants, animals, diseases and technology transformed European and Native American ways of life. Beginning after Columbus' discovery in 1492 the exchange lasted throughout the years of expansion and discovery.  The Columbian Exchange impacted the social and cultural makeup of both sides of the Atlantic. Advancements in agricultural production, evolution of warfare, increased mortality rates and education are a few examples of the effect of the Columbian Exchange on both Europeans and Native Americans</span>
        
                    
             
        
        
        
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Explanation:
They are home to things like algae, insects, fish, and turtles. These living things depend on nonliving things like stones, sunlight, and soil, as well as water. Water is a part of all ecosystems. Every living thing needs water.
 
        
             
        
        
        
Sam has OCD and sam should know Bactria is crawling all over you<span />
        
             
        
        
        
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North Korea is a communist dictatorship country that was established after World War II, its capital is Pyongyang. It is located in the Korean peninsula between the sea of Japan and the Yellow sea. Before the World War II, the peninsula was governed by the Korean Empire. After the World War II the peninsula was divided in two areas North Korea and South Korea.