Oxygen is carried by the blood stream to the cells if there is more oxygen in the blood coming from the lungs, and less in the body's cell what cellar process will move the oxygen into the body cell

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.