New Scientist on MSN16h
Fertiliser can be made from human urine in just a few simple stepsUrine is rich in nitrogen, which is important for plant growth, and now scientists have found an efficient way of utilising ...
LoveToKnow on MSN11mon
How to Clean Cat Urine in the Toughest SpotsRegular household cleaning products usually won't ... rather than on the floor. Even urine that is imperceivable to humans ...
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