3. What are the dominant ethnicities in the United States?

As of July 2016, White Americans are the racial majority. African Americans are the largest racial minority, comprising an estimated 12.7% of the population. Hispanic and Latino Americans are the largest ethnic minority, comprising an estimated 17.8% of the population.

Explanation:

As of July 2016, White Americans are the racial majority. African Americans are the largest racial minority, comprising an estimated 12.7% of the population. Hispanic and Latino Americans are the largest ethnic minority, comprising an estimated 17.8% of the population.

answer: d.

a lack of valuable natural resources

explanation:

landlessness of ordinary people

^^something like that^^^