What reforms were implemented during the Tang and Song dynasties? 20 points!!! And brainiest A. Forming different departments and ministries in the government to separate power

B. Creating a group that would oversee the government and hold it accountable

C. Introducing civil service exams, which would find the most qualified people to work

D. All of these

Was the us justified in using the atomic bomb on hiroshima and nagasaki? why or why not?

Which of the following cultures were among the earliest known inhabitants of north america? a) mayab) incac) anasazi d) olmec

The battle of sabine pass is important because? a) it was a stalemate between union and confederate armies. b) it resulted in the largest confederate casualty in the war. c) it marks the failed attempt of the union army to invade the confederate state of texas. d) it was won by the union soldiers and marked a turning point in the western front of the war.