People who have something in common, and who believe that what they have in common is significant, form a:

social group.

Explanation:

Social groups are defined by the interaction established between people and the existing sense of identity. Systematically and consistently, within a social group, the individuals who compose it develop a stable relationship, since they share common interests.

Thus, members of this type of group share stories, goals, interests, values, principles, symbols, traditions and, above all, the laws and norms that ensure interpersonal relationships and the performance of certain roles between social subjects.

These groups develop much of their reflections from their surroundings to conclude that a social group has a primary role in shaping society. It assists in the creation of a group identity as well as in the formation of tastes and preferences, values and worldviews.

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

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new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.