Answer:
Rivers were attractive locations for the first civilizations because they provided a steady supply of drinking water and made the land fertile for growing crops. Moreover, goods and people could be transported easily, and the people in these civilizations could fish and hunt the animals that came to drink water.
Collective bargaining is a process of negotiation between employers and a group of employees aimed at agreements to regulate working salaries, working conditions, benefits, and other aspects of workers' compensation and rights for workers.
Answer:
Federation: a group of states with a central government but independence in internal affairs.
Union: the action or fact of joining or being joined, especially in a political context.
Explanation:
It would be to keep people safe
