Please help me 10 points

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.

Reflect on what you learned in this lesson. write two paragraphs (150-250 words) explaining the benefits of studying history.

How do you think american life would change greatly, as soldiers went to war in europe?