Social movements influence public policy changes by raising awareness of societal issues and advocating for reforms. They mobilize grassroots support, tapping into public sentiment to pressure lawmakers for new legislation or policy shifts. Movements often highlight injustices, create public dialogue, and build coalitions to amplify their voices. By framing issues in relatable terms, they can sway public opinion and shift political agendas. Ultimately, social movements serve as essential catalysts for change, prompting legislative action and inspiring broader societal transformation through sustained advocacy.