How does a common language unite people

because they speak the same thing and they can understand each other so if someone like doesn't understand something

or needs help, they can talk it through

Explanation:

Hope it helps :'/

b, public works good luck

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.