Answer:
D. There was no more frontier land
Explanation:
This is the answer because the 1890 census said that the frontier region of the United States no longer existed which means there was no more frontier land.
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Prohibition was hard to enforce because citizens always found a way around prohibitions rules, such as bootlegging and smuggling alcohol from canada
Theres many find it on google.
examples are Switzerland, US, Bhutan
Answer:
established that all of humanity would be guarded by an international legal shield and that even a head of state would be held criminally responsible and punished for aggression and crimes against humanity