Help me study for my Business class. I’m stuck and don’t understand.

Hello, I have included the reading material to complete this assignment i will also include a podcast link it will also help you answer the question.

Question: Cronon argues that “the elevator helped turn grain into capital by obscuring and distanc­ing its link with physical nature, while another new technology extended that process by weakening its link with geography.” What is this technology, how did it weaken grain’s link with geography, and why was the development of enforceable grades so important to its success?

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