What country invaded Mexico in 1861, thereby influencing the American Civil War?

All of the following characteristics but one illustrate that the United States is a developed country; it has

a. generally low economic growth rates. b. substantial overseas investments. c. substantial primary commodity exports. d. human capital exports. e. a large consumer products sector.

Which of the following is NOT true about the social characteristic of America? a. It refers to the kinds of people that live in a place and the ways in which they are distributed in an area. b. When immigrants first arrived in America, they tended to cluster together at their ports of origin for at least ageneration or two

c. States with old populations moving in or young populations moving out are less politically active than stateswith more stable populations. d. The high population of African Americans in the Southeast is a legacy of slavery in that part of the country.