Beans 10 day old saplings
Left Side: Charcoal+Urine+red soil 0-|-0 Right Side: Charcoal+red soil
Dark Green Leaves 0-|-0 Light Green Leaves
The volume of charcoal and red soils is same in both the pots i.e., 50% Charcoal and 50% Red soil in volume.
The urine has contributed the nitrogen for the saplings, that is the reason why the leaves of left side sapling are dark green in color.
The clay pots which were filled with charcoal for collecting urine, by keeping them in the toilet used by kids.
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