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Title: Coal and petroleum
Description: Coal and petroleum is resource which obtained by nature. The world's first oil well was drilled in Pennsylvania, USA, in 1859.
Description: Coal and petroleum is resource which obtained by nature. The world's first oil well was drilled in Pennsylvania, USA, in 1859.
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Title: Coal and petroleum
Description: Coal and petroleum is resource which obtained by nature. The world's first oil well was drilled in Pennsylvania, USA, in 1859.
Description: Coal and petroleum is resource which obtained by nature. The world's first oil well was drilled in Pennsylvania, USA, in 1859.