What were the countries like before the great Britain took over?

Once the plague became airborne, how could it then be spread?

In the united states the largest number of sheep are raised in the a.west b.north c.east

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.