Settlers could gain ownership of land as long as they ?

by 1890, the united states had by far the world's most productive economy. american industry produced twice as much as its closest competitor--britain. but the united states was not a great military or diplomatic power. its army numbered less than 30,000 troops, and its navy had only about 10,000 seamen. britain's army was five times the size of its american counterpart, and its navy was ten times bigger. the united states' military was small because the country was situated between two large oceans and was surrounded by weak or friendly nations. it faced no serious military threats and had little interest in asserting military power overseas.

i just answered it

explanation:

these civilizations were located around fertile rivers, where they could produce an abundance of crops

what are the choices btw if it was me id say the lack of money to continue with education