1. The Cold War was a period of geopolitical tension between the United States and the Soviet Union and their respective allies.
2. The political attitude of a state that does not associate or identify itself with the political ideology or objective espoused by other states, groups of states, or international causes, or with the foreign policies stemming therefrom.
3. In relationships, interdependence is the degree to which members of the group are mutually dependent on the others. This concept differs from a dependent relationship, where some members are dependent and some are not.
The great ancient civilizations flourished around river valleys because the rivers produce rich fertile soil and a supply of water for irrigation of crops and human consumption. This allows for the agricultural production to be greater and it can sustain more people.
