Answer:
Social stratification
Explanation:
As soon as civilizations were successful enough for some people to avoid the physical work of farming -- and live off the labor of others, social classes emerged. The people who traded, ruled, or served as priests and administrators usually had more power than the farmers.
Answer:
in 1862 congressed passed the pacific railway act which authorized the construction of a trans continental railroad four of the five railroad were built with assistance from the federal government through land grants
Answer:
true
Explanation:
opportunity cost: cost of the next best alternative use of money, time, or resources when one choice is made rather than another.
