BIOL - How Human Activity Has Caused Water Pollution
Biology, water pollution, leaching, eutrophication - IGCSE | IBDP | DSE | GCE | IAL | AP Biology
Water Pollution by Sewage
Sewage is a one of the major causes of water pollution. When untreated sewage gets released into rivers or seas:
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Eutrophication by Leached Minerals from Fertilisers
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