Final answer:
The Progressive movement sought reforms through government intervention to address societal issues, and grassroots movements involve local citizens advocating for change.
Explanation:
The Progressive movement in American history was a reform effort that aimed to address social, political, and economic injustices through government intervention and regulation. Reform, in this context, refers to changes implemented to improve society, such as labor conditions, food safety, and government transparency. A grassroots movement is a type of social movement that starts at the local level and involves ordinary citizens pushing for change in society.
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