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.
In carrying out his duties, the president is the Mandatory of the MPR, responsible to the MPR for the execution of state policy. In addition to his executive authority, the president is vested with legislative power, acting in concurrence with the DPR.