(06.03 MC) Use the chаrt belоw tо аnswer the questiоns: Country Populаtion(1997 estimate) Area(square km) U.S. 272,648,000 9,364,520 Romania 22,609,000 237,391 Ghana 18,339,000 237,533 Which of these countries has the greatest population density? Which has the least? Provide an explanation and proof for your answer to receive full credit.