How could language, working conditions, and economic opportunities cause these groups to struggle?

Which of the following was not an effect of westward expansion? a. native american tribes suffered confinement on reservations. b. native americans learned new techniques of irrigation. c. many native americans died from the spread of disease. d. natural resources were depleted from misuse by white settlers.

How could indian agents profit their assignments?

What notable contributions to science has sandia national labs (snl) produced over the years?