Movements seek to improve society by changing some specific aspect of the social structure, such as public policy, to bring it in line with their own values and beliefs.

reform movements.

Explanation:

Reform movements are organized social or political movements to achieve the ideals of a community. They are focused to make changes in a society or community to improve it. It means the improvement of the unsatisfactory social or political system. For example, Martin Luther King Jr. worked to end discrimination against the African American people in the American society.

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