The Institute of Medicine lays out the approximate amount of water traditionally thought necessary for males and females of varying age groups and lifestyles in liters per day. The IOM recommends males 19 to over 70 years of age consume 3.7 liters of water daily. Women in the same age group only require 2.7 liters.
The characteristics of a nation-state are listed below: 1. Defined Territory. 2. Self-Rule (Sovereignty). 3. Some form of organized government. 4. Population of people sharing a national identity/customs.
This is the difference of why the United States is not a Nation State. Because the United States is not a nation at all, it is a Union of Nations that are limited in autonomy by the people investing ANOTHER Government with certain powers. But that Government is limited in its own autonomy by the State and Local Governments.