The United States is an immigrant country, mainly of European white descent. _ _ _ _ _ (true or false?

The United States has a population of 307 million (2009), ranking third in the world. Most residents are descendants of European white immigrants, African blacks and Asian immigrants. Black Americans are mainly distributed in the south, engaged in agricultural labor, and then gradually migrated to cities in the north and west. The number of Indian aborigines is small, while the number of Asian immigrants and their descendants is growing rapidly.

So the answer is: √.