Water pollution is caused by the introduction of harmful substances, energy, or heat into water bodies. Domestic waste, insecticides/herbicides, and heavy metals are examples of pollutants that directly degrade water quality and harm aquatic ecosystems.
Which of the following does not cause water pollution?
Asked in GPSC Prelims CSP 2 2023 · Topic: Pollution (Water Pollution: Sources, common pollutants, water quality indicators (BOD, COD, DO), effects, control measures.)
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