How did the steam engine increase productivity at this time? please help me with my work ​

Aclaim about history is most likely not valid if it has which of these characteristics?

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?

How did the church gain secular power? a) monks forced massive numbers of people to convert through fear of punishment. b) the church issued interdicts, laws passed by the church regardless of secular law. c) the church's power to deny the sacraments gave the church power over christians. d) canon law established secular courts under the control of the church.