That smelly, pale yellow liquid that people flush down the toilet every day is an industrial fertilizer, a diagnostic tool, a medicine, a renewable...
Kyauta mara iyaka, Bincika komai Babu Talla, Miliyoyin taken kuma an ƙara kowace rana, Duk dandamali da Ingantaccen Cikakke, A ko'ina da kowane lokaci
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