Can someone help me i only have a few minutes

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.

What new concept did the the american revolution introduce into the world

What happened to hudsons voyage east across the top of russia ?