Why was Mao Zedong’s communist government in a China deeply concerned by a change in the policy of containment?

i think it was   tsar alexander ii

answer: c  

the factory goes out of business, causing the workers to lose their jobs.

explanation:

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while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.