How did the use of spanish missions affect the spread of disease in the americas? a. thousands of american indians were exposed to diseases at spanish missions. b. american indians found cures to diseases at spanish missions. c. thousands of europeans were exposed to diseases at spanish missions. d. europeans would isolate themselves at spanish missions during outbreaks of disease.

Describe the geography of the nile valley . how did this geography affect civilizations that emerged in the nile valley

Plz ! the election marked the last time the federalist party ran a candidate for president. a. 1812. b. 1820. c. 1816. d. 1824.

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?