By definition we have:
A social movement is a non-formal group of individuals or organizations whose purpose is social change.
In the political field of the word, the term is used to refer to a transitory group of people who seek the occasional defense of a principle, a thesis or a particular order of interests. This group is transient in nature and disappears once its objective has been achieved.
Answer:
Social movements are defined as organized activities that encourages or discourages social change.
