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The supplies Diaries

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Engels' reserve describes how untreated sewage established awful odours and turned the rivers eco-friendly in industrial towns. In 1854 John Snow traced a cholera outbreak in Soho in London to fecal contamination of the general public drinking water well by a home cesspit. Output enormously increased, and the result was https://supplies71246.creacionblog.com/26876559/supplies-an-overview

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