As chicanos became urban and rural wage workers, what problems did they confront? why was mexican labor so important? in which industries?

Mexicans were not accepted into unions, and they had to be content with the most difficult and poorly paid jobs. They were constantly replenishing the most disenfranchised group of American workers - seasonal agricultural workers who roamed the country. They were mainly recruited to collect long-fiber cotton in Arizona (which requires a lot of skills), to beet plantations and sugar mills in Colorado, Arkansas, and other states. Mexicans also worked on the building of railways.

Explanation:

- tobacco.

- "rolfe reacted to consumer demand by importing seed from the west indies and cultivating the plant in the jamestown colony. those tobacco seeds became the seeds of a huge economic empire.the tobacco economy rapidly began to shape the society and development of the colony. growing tobacco takes its toil on the soil."

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b.   jim crow laws were enacted in northern states.