Which country vied spain for control of the mississippi river?

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.

All of the following cities are located in china except

Which piece of information would most a historian create an interpretation of this photograph of works in a factory?