help me on this please

Before the war, most soldiers had been

Question 4 options:

bankers

computer programmers

farmers

trained soldiers

What was the most common cause of death for soldiers?

Question 5 options:
guns

sickness

cannon balls

injuries

Select all options that correctly explain why the Civil War was called the "first modern war."

Question 6 options:

Information about troop movements could be relayed quickly by telegraph


A submarine was used.


Armies could be moved quickly on railroads


Hot-air balloons were used by the North to spy