Give an example of both primary and secondary source of information. Which source is of information do you think is likely to be most accurate and why

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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?

Viktor is a russian university student. he wants to go to new york for a semester to study and improve his english. what should he do before he buys his plane ticket? a. buy a map of new york city b. pay for his program in new york c. apply for a us visa d. apply for a policy waiver