United States History, Map, Flag, Population Britannica

OverviewLandReliefUnited States, country in North America, a federal republic of 50 states. Besides the 48 contermThe major characteristic of the United States is probably its great variety. Its physical environment ranges from the Arctic to the subtropical, from the moist rain forest to the arid desert, from the rugged mountain peak to the flat prairie. Although the total population of the United States is larThe United States contains a highly diverse population. Unlike a country such as China that largThe United States is the world’s greatest economic power, measured in terms of gross domestic product (GDP). The nation’s wealth is partly a reflection of its rich natural resources and its enormous agricultural output, but it owes more to the country’s highly developed industry. Despi在britannica上الموضوع: تاريخ