How did the Song improve upon the Tang version of the civil service system? They mandated that most officials came from the military.
They made the examinations easier to pass.
They opened up the system to more people.
They required students to earn their degrees in three years.

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.

The explorer marco polo who visited china was from barcelona luxembourg rome venice

How might geography have led to greek -city states choosing different gods or goddesses as the protectors of their cities