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.
Though specific duties of the position vary in senate chambers across the country, the president of the senate may assume any or all of the following duties: 1  Calls the chamber to order. 2  Presides over the Senate sessions and joint sessions of the House and Senate. 3  Ensures that members abide by the chamber's rules. 4  Oversees the legislative process.