What were some effects of the columbian exchange?
africa grew wealthy from the slave trade, the americas gained gold from europe, and the merchant class of europe was born.
africa’s population declined, the americas flourished with plants from europe, and wealth flowed in the european economy.
african society was torn apart by the slave trade, the americas exported finished goods to europe, and european countries invested in the american stock market.
west africa began agricultural farming, the americas were introduced to horses, and europe started funding state banks.

africa’s population declined

explanation:

it is called colombian exchange: the process occurred between the fifteenth and sixteenth centuries in which agricultural products and other foods of the new world (the american continent) in the old world (europe, africa and asia) and vice versa were made known. a broader definition also includes technological advances, demographics and even diseases._souljaboislat66

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the main inference that can be drawn from jean jacques rousseau's book the social contract is: a. people can enjoy civil and physical freedom, even if it sometimes harms society.