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there can be multiple reaskns skme may be:
poor workjng conditons
minimum wage
The south improvement company in 1872 caused rockefeller able to monopolized around 90% of the oil market in North America.
The south improvement company largely increased the number of oil and railroad companies in southern states. Because of the increase in numbers, the market for oil and railroad companies became saturated. This lead many of his competitors to bankruptcy, which is why the competitors called it a conspiracy.
They had members in public office
Answer:
Surplus Resources
Industrialization and Commercialization
Development of Transport and Communication
Explanation: