Answer:
Option (D). The uses of geography
Explanation: The essential element of geography are based on the geography standards and it helps us understand how people and places are connected in the world. The uses of geography understands the relationships among people, places environment over time, it also help understand the past and prepare for the future. The uses of geography is often used by a geographer who studies the past and plans for the future.
After the civil war, railroads connected the country on a national scale, boosting the economy and leading to mass production, mass consumption, and encouraging entrepreneurs.
Sunni and shia The division into these two denominations of Islam happened after the death of Prophet Muhammad, when there was contention as to who would be his successor. Some people (Sunnis) believed that only someone who is capable enough should be given this responsibility while others believed that the leadership should stay with only members of Prophet's family(Shias).
Settlers encouraged assimilation because they didnt want to just force them off of their land they wanted to have alternate ideas and it didnt really work although some did assimilate.
