Unit 3 1-1 The United States of America

The USA is the most powerful and highly developed country of the world. It is situated in the central part of the North American continent. Its western coast is washed by the Pacific Ocean and its eastern coast is washed by the Atlantic Ocean and the Gulf of Mexico.
The USA is separated from Canada in the north by the 49th parallel and the Great Lakes, and from Mexico in the south by a line following the Rio Grande River and continuing across the highlands to the Pacific Ocean. The total area of the USA is over 9 million square kilometres.