Panama canal opened up trade routes that connect the all American continent, Estern Asia, and Western Europe, which allow all nations within these regions to trade on Global level.
Due to massive opportunity that created through Panama Canel, Traders on domestic able gained the opportunity to obtain cheaper resources and larger client base, which led to the growth of United States economy.
The statement from the ones you've listed that probably best explains the failure of democratic European governments and nations following World War I is
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The governments were unable to solve serious economic problems in these nation.
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This lead to further consequences which partially also resulted in the next world war.
Answer: 100 feet.
Explanation: It is against the law for a driver to pass another vehicle within 100 feet of a railroad crossing.
Fear Appeal would be your answer.
