About the country The United States - a country in North America. Area - 9,518,900 km ² (fourth in the world by area). Population - more than 309 million people (third place). Capital - the city of Washington. United States border with Canada, Mexico, and Russia. By the Pacific Ocean, the Atlantic Ocean. Administrative divisions: 50 states and the District of Columbia, the U.S. submission also a number of island territories. The USA was formed in 1776 by combining the thirteen British colonies that declared their independence. Economy: currently the largest in the world ($ 14.2 trillion).. The U.S. has powerful armed forces, including the largest navy, have a permanent seat on the UN Security Council, a founding member of NATO. The The U.S. has the second most total power nuclear capacity in the world.
Geography The main territory of the United States (known as the continental states) is located in North America, stretching from the Atlantic Ocean in the east to the Pacific Ocean in the west. In the south of the U.S. border with Mexico, to the north - Canada. In addition, in the U.S. are still two of the state. In the far north-west of the continent is Alaska also borders with Canada. The Pacific Ocean is Hawaii. Russian border runs through the Bering Strait. The U.S. also has thousands of islands in the Caribbean (eg, Puerto Rico) and the Pacific (American Samoa, Midway, Guam, etc.). Within the United States there are several major physiographic regions.
Relief In the east, along the Atlantic coast stretches Appalachians mountain range. To the west and south of this area is aligned to form a low-lying areas along major rivers which flow U.S.. Further west the terrain turns into vast plains and prairies, called the Great Plains, which is preceded by the Cordillera mountains. The mountain ranges occupy the entire western part of the country and rather abruptly cut off to the Pacific Ocean. Most of Alaska occupy the northern Cordillera. Hawaiian archipelago is a series of volcanic islands up to 4205 m.
Rivers and lakes. River runoff from the territory of the United States by the pools of three oceans - the Pacific, Atlantic and Arctic. The main body of water (between the Pacific and Atlantic oceans) traverses the eastern part of the Cordillera, and to the Arctic Ocean basin is only a small part of the northern states and Alaska. Meeting point of the three watersheds located on Mount-Triple Divide Peak. Water availability is not uniform all over the country - the height of the layer of annual runoff in the states of Washington and Oregon is cm, and on the interior highlands and plateaus of up to 10 cm Large lakes in the north of the country - the Great Lakes. Smaller undrained salt lakes located in depressions of the Great Basin. Inland waters are widely used in industrial and municipal water supply, irrigation, hydropower and navigation. Most of the runoff owned U.S. Gulf of Mexico basin of the Atlantic. The largest river system formed the Mississippi River (length 3757 km, the annual flow of 180 km ³) and its countless tributaries, the largest of which - Missouri (length 4127 km), Arkansas (2364 km) and Ohio (1579 km).
Great Lakes - a system of freshwater lakes in North America, the U.S. and Canada. Includes a number of large and medium-sized reservoirs, linked by rivers and straits. An area of about thousand km ², the water volume 22.7 thousand km ³. By itself the Great Lakes are the five biggest: Superior, Huron, Michigan, Erie and Ontario. Contact them several medium lakes. The lakes belong to the basin of the Atlantic. Stoke on the St. Lawrence River. Great lakes
Climate Since the country is located in a large area, it represented almost all climatic zones. Most of the U.S. is located in the temperate zone, south of the subtropical climate prevails, Hawaii and southern Florida are in the tropics and the north of Alaska belongs to the polar regions. The Great Plains west of the 100th meridian referred to as semi-desert, the Great Basin, and the area around it are arid and coastal areas of California - Mediterranean climate. Climate type within a zone can vary considerably depending on the terrain, proximity to the ocean, and other factors. The main component of the U.S. Climate jet stream is a high-rise - powerful airflow, bringing moisture from the North Pacific. Moisture-laden winds from the Pacific Ocean actively irrigate U.S. west coast. Frequent tornadoes are a known feature of the climate of North America, the United States ahead of any other country in the number of tornadoes. Hurricanes are common in the United States. East coast of the island of Hawaii and especially southern U.S. states bordering the Gulf of Mexico, the most affected by this disaster.
Population Indian tribes populated the U.S. territory of about 10 thousand years ago, and their descendants remained the dominant ethnic component to the end of XVII century. Modern people - descendants of relatively recent (XVII-XX centuries) of immigrants from Europe (mainly Western) and Africa. It should be noted that the full right to be called Americans receive only the children of immigrants born in the United States. There remains a clear distinction between foreigners and natives, between which there is a large cultural and linguistic distance. This difference, however, is limited to the internal division. Americans United States - a diverse, heterogeneous nation with conflicting racial composition. Dominant in all respects and regions (except Hawaii) is now Europoid race - came from the United Kingdom, Germany, Ireland and other European countries. Further distinguished African Americans, Hispanics, Asians, Indians and others, who account for over a third of the population.
Languages USA The most common in the U.S. native language - English. They, like their mother tongue, hold million people from 293 million Americans (73.5%). Spanish is the mother tongue for 28 million people in the U.S. (10.7%). It is followed by French (1,606,790), Chinese (1,499,635), German (1,382,615), Turkish (about 1,172,615), Tagalog ( ), Vietnamese (1,009,625), Italian ( ) and Korean (894,065). Russian language occupies 11 th place in the number of carriers in the U.S. - more than 700 thousand (0.24%)
Administrative division The state consists of 50 states, are equal members of the Federation, the Federal District of Columbia and dependent territories. Each state has its own constitution, legislature, executive and judiciary. Most of the state name is derived from the Native American tribes and the names of the kings of England and France.
Washington On the role of the capital of the new state after the American Revolution, many of the city claimed. Therefore, in 1790 it was decided to build a new city in the Potomac River. The capital was named Washington in honor of the first president, George Washington. First architect who planned and designed the city, was Frenchman Pierre Langfang. Washington DC - the capital of the United States since Washington as a separate city was abolished as a result of the administrative reform in 1873, so the capital of the United States officially called DC. The U.S. Constitution and the Law on the residence, the District of Columbia has a special status as the capital of the federal state. Square thousand km ². Population: Within the Federal District 602 thousand inhabitants (2010). With the suburbs (in Maryland and Virginia) million inhabitants (2010).