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.
PRESIDENT. The president of the United States is the chief executive of the federal government and commander-and-chief of the United States Military. Below is a list of presidential responsibilities. * The president manages the U.S. government and the countryâs national affairs. * The president can issue executive orders â rules or actions that do not require congressional approval. * The president can mobilize and call to action the National Guard. * The president nominates all heads of executive departments.