Europeans turned to africa as a source of enslaved persons because
a. there weren't enough criminals and captives to do the work
b. groups of american indians were exploited and decimated
c. only africans were capable of doing the backbreaking work
d. only africa could provide the number of workers needed

B. Groups of American Indians were exploited and decimated

Explanation:

When Europeans came to America they were engaged in many wars against the natives here, this meant they killed and exploited many of them, when they needed workers to exploit the natural resources there were non left, this meant that they had to turn to Africa to trade slaves and bring them to America to do the work for them.

so they can differentiate themselves from others as they saw themselves as the superior race. the star was basically a symbol that meant you are a less of a person than i am because of my race. the star was also degrading for those who had to wear it because they were aware of this and the nazis used the notion to make them feel less like a person.

it made the ground more soft which is better for the world because no one likes walking on a rocky road it hurts your feet