Can you please help me with my question​

What emperor was given credit for having the aqueducts built

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.

All of the following are reasons why people wanted the u.s. government to acquire hawaii except which one? a. it was an ideal location for a ship refueling station or permanent naval base. b. many americans knew it would be an ideal place to vacation. c. it was an ideal location for a lucrative sugar production industry. d. many missionaries hoped to convert the large native population to christianity.