The United States is a country with a rapid population growth among developed countries. The main reasons for the rapid population growth are

There are many immigrants. In the United States, cultures from different regions have been integrated for a long time, forming a diversified Brazilian culture. There are not many local residents in the United States, and the main reason for the rapid population growth is a large number of immigrants. Washington, the capital of the United States, is located in central North America, bordering Canada in the north, the Gulf of Mexico in the south, the Pacific Ocean in the west and the Atlantic Ocean in the east. Most areas have a continental climate, while the south has a subtropical climate. The terrain is generally high in the west and low in the east, with abundant natural resources. The proven total reserves of mineral resources rank first in the world.