What have been the principal causes of mass migration since WWII? What are some of the challenges presented by these migrations to host countries?

What is the main reason the united states removed the taliban from power shortly after the september 11 2001 attacks ?

What occupation did muhammad have before the first revelation? politician military general trader religious leader mark this and retum save and exit

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?