What made Europeans in the Americas realize that they needed a new workforce in the early 1500s? They realized that American Indians lacked training and physical skill. They realized that American Indians were dying from disease and overwork. They realized that the natural resources in the Americas were running out. They realized that the encomienda system they had set up was wrong.
The correct answer should be They realized that American Indians were dying from disease and overwork.
They didn't have the resistance built up to germs that Europeans carried with them so they started massively dying due to this and they needed a huge workforce. That's why they started getting slaves from Africa who could work and get resources for manufacturing.
When they realized that the Americans lacked training and physique, and were overworking, getting sick, and dying was when they realized that a new workforce.
