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Pollution of Air and Water — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8SciencePollution of Air and Water2 Marks
Question
Various indicators suggest that water is contaminated. Mention one pollutant that also serves as indicator of water pollution.
✓

Answer

Algae can function as indicator of water pollution. When excessive quantity of chemicals or sewage from field goes in water, we see a lot of algae growing in water.

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