Delhi-NCR twins Naina and Nayantara Singh developed a plant-based water purification system. Their innovation, Aqua Sattva, ...
A 15-year-old Massachusetts student is exploring an unusual way to make polluted water cleaner: using discarded animal bones.
A 10th-grade student in Hawaii began with a project to filter polluted seawater using coconut husks. Her research later found ...
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