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IELTS Reading Practice Test : Water Filter

IELTS Reading Practice Test : Water Filter

Water Filter A. An ingenious invention is set to bring clean water to the third world, and while the science may be cutting edge, the materials are extremely down to earth. A handful of clay, yesterday‘s coffee grounds and some cow manure are the ingredients that could bring clean, safe drinking water to much of the third world. B. The simple new technology, developed by ANU materials scientist Mr. Tony Flynn, allows water filters to be made from commonly available…

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