Under Nikita Khrushchev’s leadership the Soviet Union began to de-Stalinize, meaning that it

C

Explanation:

the labor movement in the united states grew out of the need to protect the common interest of workers

for those in the industrial sector organized labor unions fought for better wages reasonable hours and safer working conditions

  in the 19th century trade unionism was mainly a movement of skilled workers.

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answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.