The Columbian Exchange had positive and negative consequences.
Some of the positive consequences were the introduction of different nutrients and food supplies into the Old World, such as corn or potatoes. This improved the diet of most Europeans, leading to a population growth in the next generations.
However, Europe benefited more than the Americas, for some of the negative consequences about the Columbian Exchange were the introduction of diseases into the continent and the slavery of African populations into the Americas.
Answer: Mountains (IF THIS IS AFRICA)
Explanation: . It is subdivided into a number of zones running north and south and consisting in turn of mountain ranges, tablelands and hollows. The most striking feature is the existence of two great lines of hollows, due largely to the subsidence of whole segments of the Earth's crust, the lowest parts of which are occupied by vast lakes. Towards the south the two lines converge and give place to one great valley (occupied by Lake Nyasa, or Lake Malawi), the southern part of which is less distinct due to rifting and subsidence than the rest of the system.
