Alfred Crosby, a historian, once said that Columbus and other Europeans re-knit the torn seams of Pangaea. In the year 1492, the world ecological system came together as European vessels carried goods and people across the ocean, occupying new land (Morgan, 2009). Therefore, Crosby’s phrase refers to the reconnection of the continents after the continental drift through European explorations overseas. These voyages saw the introduction of different things in various regions such as corn in the U.S, brought by the Portuguese. Alfred Crosby referred to it as the Columbine Exchange, and ecologists consider it as an important phenomenon (Morgan, 2009). These explorations and journeys had both advantages and disadvantages to each continent. Some