Final answer:
Europeans began relying on African labor on their plantations in the Americas due to the decrease in available native labor, Africans' agricultural knowledge and ability to withstand harsh conditions, and racial stereotypes and prejudices.
Step-by-step explanation:
Europeans began relying on African labor on their plantations in the Americas for a few key reasons. First, the native populations in the Americas were devastated by diseases brought over by the Europeans, resulting in a decrease in available labor. Second, the Europeans found that Africans had experience with agriculture and were able to withstand the harsh conditions on plantations. Finally, the Europeans believed that Africans were suited for manual labor based on racial stereotypes and prejudices.
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