<span>The desire of human to take control of a specific area or certain group of people is called the territoriality. This is associated with how spaces should be used, its ownership, and occupancy, and possessions. This is also associated with the wanting to lead the group of people living in a certain populace. </span>
Mekong, Tiber and Danube.
It's directly south of the United States.
Plains have a higher population density because plains are easy to reach and at plains people get a number of resources necessary for their survival and livelihood.