Final answer:
The civil rights movement employed direct action campaigns like the Montgomery bus boycott and sit-in campaigns to challenge segregation effectively.
Explanation:
The civil rights movement used various techniques to challenge segregation. One prominent strategy was direct action campaigns, which involved public demonstrations confronting segregationist practices directly. For example, the Montgomery bus boycott organized after Rosa Parks' arrest and the sit-in campaigns in Greensboro were powerful nonviolent resistance actions.
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