Question

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.

Explanation:

The Columbian Exchange led to massive enslavement of Africans, causing population decline and societal disruption in Africa. The Americas received crops and livestock from Europe that supported population and economic growth, while European powers extracted resources and wealth from the Americas, boosting their economies. Other options have inaccuracies: Africa did not grow wealthy from the slave trade, the Americas exported raw materials (not finished goods) to Europe, and state banks/American stock markets did not exist in this era.

Answer:

B. Africa's population declined, the Americas flourished with plants from Europe, and wealth flowed in the European economy.