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        | minerals used in fertilizers |  | 
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        | a government under the rule of one all-powerful leader |  | 
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        | an effort to punish a country by using trade barriers |  | 
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        | older sections with narrow streets and bazaars |  | 
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        | a conflict between different groups within a country |  | 
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        | in which a king or queen is head of state but elected officials run the government |  | 
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        | nomads who traditionally raise livestock |  | 
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        | farmers share all of the work and property |  | 
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        | members share in the work, but each can also own some private property |  | 
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        | groups of families related by blood or marriage |  | 
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        | an area built by rich soil left by river floods |  | 
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        | an order that restricts trade with another country |  | 
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        | farm product grown for sale as an export |  | 
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        | cracks in the Earth's crust caused by colliding tectonic plates |  | 
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        | the deliberate killing of an ethnic group |  | 
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        | a small territory surrounded by a larger territory |  | 
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