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.
The President is responsible for implementing and enforcing the laws written by Congress and, to that end, appoints the heads of the federal agencies, including the Cabinet. The Vice President is also part of the Executive Branch, ready to assume the Presidency should the need arise. The Cabinet and independent federal agencies are responsible for the day-to-day enforcement and administration of federal laws.
Under the Constitution, the president is the federal official primarily responsible for the relations of the United States with foreign nations. Presidents appoint ambassadors, ministers and consuls -- subject to confirmation by the Senate -- and receive foreign ambassadors and other public officials.mong the president's constitutional powers is that of appointing important public officials; presidential nomination of federal judges, including members of the Supreme Court, is subject to confirmation by the Senate.