Fighting in WWI included the use of tanks, ships/submarines, planes, machine guns, and other heavy artillery, meaning it was fought using Group of answer choices

Trench Warfare

Heavy Warfare

Industrial Warfare

20th Century Warfare

to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.

i think it is the first one hope this

try c, it's always the answer. pats suck.