Understanding your blood oxygen levels when you are at rest is something that you need to do if you want to make the most of the oxygen that's entering your body. Normal blood oxygen levels for the average American is about 90 to 100 percent oxygen saturation.
Chief of State. Every nation has a chief of state, a person who serves as the symbolic leader of the country and represents the nation. In the United States, the president both leads the government and acts as the chief of state, although this is not the case in many countries.
There is only one President of the United States. This one person. must fill a number of different roles at the same time. These roles. are: (1) chief of state, (2) chief executive, (3) chief administrator, (4) chief diplomat, (5) commander in chief, (6) chief legislator, (7) party chief, and (8) chief citizen. Chief of state refers to the President as the head of the government. He is the symbol of all the people. In the United States, the President. also rules over the government. In many countries, the chief of state. reigns over government but does not rule.