The USA is composed of 50 states. It occupies the central part of North American continent. It borders on Canada in the north and on Mexico in the south. The waters of the Atlantic Ocean wash the USA in the east and the waters of the Pacific Ocean wash the country in the west. The Hawaiian Islands are in the Pacific Ocean. They became the 50th state of the USA in 1958. The total area of the country is 9000 square kilometers. The population is more then 200 million people. Washington is the capital of USA. English is the official language. The flag of the USA known as the "Stars and Stripes". The Rocky Mountains extend from Alaska through the USA to Mexico, but greater part of the country is a plain. Where are many rivers in USA and the longest is Mississippi. The country has every variety of climates: from climate of the tropics to that of the Atlantic regions. The USA economy grew greatly during the world wars. When big American monopolists got great profits. The country is rich in mineral resources, heavy industry prevails in the USA economy, including mining metallurgical, machine building, chemical industries. Light and food industries are wheel developed too. The USA is a federative republic. The president is the head of the state. He is also commander-in-chief of army and navy. The highest legislative organ in the country is the congress, which consists of the Senate and House of Representatives.