1. The United States of America is a ffederal constitutional consisting of fifty states and a federal district. The country is situated mostly in central North América, bordered by Canada to the north and Mexico to the south. The state of Alaska is in the northwest of the continent, with Canada to the east and Russia to the west across the Bering Strait. With 9.83 million square kilometers and with over 308 million inhabitants, is the third or fourth largest country by total area and the third largest by both land area and by population.

2. Geography The country has many landforms and landforms. As one moves inland, the coastal plain of the Atlantic seaboard gives rise to deciduous forest and the Piedmont Plateau. The Appalachians separate the eastern shore of the Great Lakes of the prairies of the Midwest. The Mississippi- Missouri River, the fourth longest river system in the world

3. climate For its large size and geographic variety, the country has the most types of weather. To the east of the 100th meridian, the climate ranges from humid continental in the north to humid subtropical in the south. The southern tip of Florida and the Hawaiian Islands have a tropical climate. The Great Plains west of the 100th meridian are semi-arid, while much of the western mountains have an alpine climate

4. Flora and fauna United States is considered a megadiverse country: about 17,000 species of vascular plants live in the contiguous United States and Alaska, and over 1,800 species of flowering plants are found only in Hawaii, few of which grow in the continente.84 The country is home to over 400 species of mammals, 750 species of birds and 500 species of reptiles and anfibios.85 Here also have discovered more than 91,000 different kinds of insectos.86

5. coin American dollar bills. The dollar has been the official currency since 1792.

6. Con 9,83 millones de km² y con más de 308 millones de habitantes, es el tercer o cuarto país más grande por área total y el tercero más grande tanto por la superficie terrestre como por población. Es una de las naciones del mundo étnicamente más diversas y multiculturales, producto de la inmigración a gran escala. 7 Es, por otro lado, la economía nacional más grande del mundo, con un PIB estimado en 14,3 billones de dólares (una cuarta parte del PIB global nominal) y una quinta parte del PIB global en paridad de poder adquisitivo. 7 population

7. U.S. Food The American cuisine is a mixture varied and interpreted something other national cuisines, this is so because it is a country created mainly of immigrants from different countries of Europe, Asia, Africa, and other countries. Might be called native cuisine of the Native American Indians and the rest is a fusion of different food cultures taken at different ends, first fast food is full of attractive marketing, on the other hand is the traditional food based on the old farming traditions of both cattle and sheep and goats.

8. American Traditions Baseball, football and cheerleading, McDonald's, Halloween, Christmas with lots of snow and the figure of Santa Claus... We all know many of the traditions of the United States thanks to movies and TV series Countless movies showing the Christmas spirit in the United States. While Christmas is a religious celebration, it has also become a traditional date for shops and businesses. Most stores start selling gifts to more than two months on December 25. And so everything is full of red, green, lights and snowmen as Christmas décor.

9. language English is the de facto national language. Although there is no official language at the federal level, some laws-such as naturalization requirements-placed English as compulsory language. In 2006, about 224 million, ie 80% of the population over five years, spoke only English at home. Spanish, spoken by 12% of the population, is the second most spoken language, and the most commonly learned as a second lengua.159 160 Some people are in favor of making English the official language, as it is at least twenty-eight states.