How did business change from 1840 to 1900?

Working conditions have changed dramatically.

Explanation:

In addition to general industry conditions, product prices and worker wages have changed. In the early industrial revolution, workers worked from 12 to 16 hours a day. Conditions were catastrophic, workers were not protected in jobs, and the employer could fire a worker when he desired. Agricultural production was improved because of the mechanization that was introduced. Thus, farmers produced faster and easier to create. They marketed their products in different ways. With the advent of trade unions, the situation and conditions in which workers worked began to improve. Wages were much more concrete over time because, at the beginning of the industrial revolution, workers barely overcrowded their families.

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the answer is title i subtitle b

b. great plains

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