Describe economic concerns and political actions of the tea party movement?

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.

Why have some historians rejected the labels bc and ad as laels for periods in world history

Plz the 10 places that charles darwin stopped at to report his findings, and include dates?