The members of a particular group are getting to know one another and attempting to reach an understanding of how each of them should act within the group. this stage of group development is called

Forming

Explanation:

In the so-called "Forming" of a group, there is still little real knowledge of the individuals we work with and little knowledge of the group's ability to act together. Since the group is focused on the action on the environment and the task to be developed, it tends to continue putting aside the effort to see the other or to give him the necessary space, something that gradually erodes the group spirit. At this point, therefore, the more explicit the interaction and action agreements, the greater the group's ability to deal with the difficulties of the future.

This phase is often chaotic, but it is essential, because this is when members of a particular group are getting to know each other and trying to understand how they should act within the group.

stable food supply,social structure, government,religion,culture/art,technology and writing/language;