Which of the items below were invented during the 1950s?

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.

According to the map, most mining occurs in the. part of the state

Which statement is true of both presidential and parliamentary systems of government?