They are valued metals unlike the paper bills today which is given the value in the hands of the government and are just printed. Gold and silver also have all the main components that money should have, portability, limited supply, durability, divisibility, uniformity, and so on.
answer c for 15 and answer b for 16
Poverty, racism, sexism, inadequate and unequal education practices among different social classes, racial barriers, and unfair hiring practices, and lack of education are some social issues that are a result of high unemployment.
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The major way in which border areas of the west were affected by the mixture of people is that a plethora of immigrants from all over the world wanted to expand to the west in order to settle--meaning that people from all backgrounds often fought over land and job opportunities.
