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.
The President is the head of the executive branch, which makes laws official. The President is elected by the entire country and serves a four-year term. The President approves and carries out laws passed by the legislative branch. He appoints or removes cabinet members and officials.e negotiates treaties, and acts as head of state and commander in chief of the armed forces. The executive branch also includes the Vice President and other officials, such as members of the cabinet. The cabinet is made up of the heads of the 15 major departments of the government.