The primary means of printing from the 1400s until the 21st century who invented this

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.