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North America is an interesting continent. There are many types of landforms, such as mountains and deserts. There are also great rivers and lakes. There are still many wide-open spaces, but there are crowded cities, too, for example, New York and Toronto. The United States and Mexico are part of North America. Canada is also in North America, and it is the biggest of the three countries. In addition, Central America, which is made up of 7 countries, and many islands in the Caribbean are also part of North America.