How did the u. s. population change from 1850 to 1900?

The urban population of the United States rose from 28%

Explanation:

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.

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