How did warfare change over the course of the eastern zhou and during the warring states period in china’s history?
a. over time, chariots became more important because large campaigns were conducted on plains.
b. as the scale of warfare grew, rulers increasingly relied on kinsmen to conduct their campaigns.
c. to maintain the honor of ancestors, codes of chivalry were introduced.
d. rulers increasingly fielded large armies composed of cavalry and mass infantry.

10 points per question and brainlist 1. name four of the ruling dynasties of china. describe at least three contributions to society from each dynasty. 2. why did the qin ruler zheng burn chinese literature and philosophy books? how did the han dynasty establish a strong and effective government? why did people rebel against the sui rule? 3. what new technologies were invented during the tang dynasty and fully developed in the song dynasty that would eventually have a great impact on the world? explain why this technology had such an impact. 4. who were the invaders that seized control and took over the song dynasty? 5. how was china's history affected by its policies of isolation from the outside world during the ming dynasty?