How were blacks and poor whites hurt by the constitution of 1890?

How did the completion of the transcontinental railroad change the lives of american citizens? a-it increased the wealth of all americans and enabled them to travel more. b-it made cross-country travel too expensive for ordinary americans. c-it decreased the safety of americans who moved to settle the plains. d-it shortened travel time between the east and west for all americans.

Name three new weapons that changed how ww! was fought and how?

Which of the following describes an effect of world war ll on the united states economy