Ineed somebody to plz give me the answer to numbers 9 and 10

Who was the democratic nominee for president in the election of 1868? a) ulysses s. grant b) horatio seymour c) samuel tilden d) charles sumner

What was the most important consequence of the large-scale ecological changes in africa two hundred thousand years ago?

Which of the following statements os an example of how climate and vegetation influence lifestyles? a. many south koreans enjoy watching american films and listening to american music. b. many mongolians are pastoral nomads who raise livestock for a living. c. many chinese peasants are moving to cities in search of better jobs opportunities. d. many north koreans wish to see relatives now living in korea.