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10 cards from this deck
How clean & safe water is for drinking & supporting aquatic life
Excess nutrients in water causing rapid algae growth
Thick green algae layer covering water surface
Bacteria decompose dead algae using up oxygen, killing fish
Fertilisers, pesticides, herbicides washing into water systems
Liquid waste from industries containing dangerous chemicals
Sulfuric acid formed when groundwater contacts sulphide minerals
Heated water discharge from industries into natural water bodies
Water hyacinth - invasive plant blocking sunlight & clogging pipes
Treating & reusing water that has already been used
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