A protest movement is a collective effort by a group of people to express their opposition to certain policies, practices, or social issues. These movements often aim to bring about change by raising awareness, influencing public opinion, or pressuring decision-makers. Common forms of protest include marches, demonstrations, and sit-ins, which can be organized around various causes such as civil rights, environmental issues, or political reform. Protest movements can vary in size and scope, ranging from local grassroots efforts to large-scale national campaigns. They often utilize social media and other communication tools to mobilize supporters and share their messages. Notable examples of protest movements include the Civil Rights Movement in the United States and the Fridays for Future climate strikes initiated by Greta Thunberg.