How did travel by railroad become safer and faster after the civil war?

Before world war 1 started, austria-hungry was wary of (spain or serbia) because of border disputes

Which of these did the soviet union do in 1961? it built a wall through berlin to keep people from moving to the west. it used force to destroy a wall the united states had built in berlin. it convinced the british and french to merge their zones in berlin with the soviet zone. it threatened to bomb berlin if the united states did not leave within 30 days.

The nile river is referred to as the giver and taker of life. explain what this means.