D. with agricultural advancements
Explanation:
- Great Zimbabwe was a major trading and religious center
- . Most of the population was engaged in the cultivation of livestock, barley, sorghum and vegetables.
- It is estimated that the city had a population of 10,000 at its peak.
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Answer:
African Americans
Explanation:
In the middle of the century, northern manufacturing extended the use of power-driven machines to a wider range of commodities. Agricultural mechanization throughout the 20th century led to dramatic shifts in farming. Tractors, combines, harvesters, and other farming equipment are helping farmers grow more.
Orogressive movement of Africans Americans northward starting at the beginning of the twentieth century was a result of economic boom in the this areas, they had to migrate and find jobs that can feed them and their families.
