as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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which is the world's longest river?
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the world's longest river is the nile river, which runs through egypt and sudan and is about 6,853 kilometers (4,258 miles) long.
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