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The United States of America (USA), usually referred to as the United States (US), or America is a country in North America. It's made up of 50 states, a federal district, and five territories.
The USA is the third greatest nation on the earth. The U.S. Shares land borders with Canada and Mexico and maritime borders with Russia, Cuba, and the Bahamas in addition to Canada and Mexico. Politically, United States is part of the UN along with other global alliances such as G7, G8, and the G20.
The United States is the world's largest financial system and is without doubt one of the most influential countries on the planet. Advances in the past hundred years have situated the United States as an international leader economically, militarily, and technologically. The United States has the largest coal reserves on this planet. The primary industries include petroleum, steel, motor vehicles, aerospace, telecommunications, chemical substances, electronics, food processing, customer goods, lumber, mining and agricultural production, although only a small part of the financial system.
Strong research and funding have helped make American colleges and universities among the world's most prestigious, making them exceptionally attractive to international students, professors and researchers in the pursuit of educational excellence. High-ranked national universities, such as Princeton and MIT, present a extensive kind of majors and award Bachelor's, master's and doctoral degrees. National Science Foundation Sponsors research in a broad range of scientific fields, including neurosciences. Numerous Medical and Agricultural journals are published from United States with good reputation. The United States has had the most Nobel Prize winners, with 336 winners total. It has been most triumphant within the discipline of Physiology or Medicine, with 94 laureates since1901.