This product allowed for the buildings in american cities to be built higher in the late 1800s.
a. oak
c. steel
b. iron
d. aluminum

c. steel

Explanation:

The importance of steelin construction lays on the fact that it is a stronger material, and it is a ligther material than iron, whihc was used prior to steel to many constructions, being stronger and lighter it gives the engineers the possibility to create bigger taller buildings that weighted less tha before this scalated the possibilities to build taller buildings.

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.