What is the overall trend in oil prices over time?

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.

To what extent do you think the roman republic was democratic?

Can someone me write a paragraph on this topic i feel confused