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.
He also has power of clemency--he can pardon sentences and commute sentences. he president appoints ambassadors, ministers, and consuls--and receives ambassadors and other foreign officials to the U.S. The President is responsible for the protection of Americans abroad and of foreign nationals in the United States.aking the world better, one answer at a time. The President of the United States is the official head of the United States Government. Unlike the Queen of England and U.K., which is an hereditary, mostly figurehead position (nowadays), POTUS is not.