In which city did renaissance architect brunelleschi construct this cathedral dome using ancient roman techniques?

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.

Pls which of the following political figures was a strong supporter of the second bank of the united states. a. john c. calhoun. b. henry clay. c. andrew jackson. d. martin van buren.

Who created the continental drift theory?