Most abundant water pollutant is

Options

A. Detergents
B. Pesticides
C. Industrial wastes
D. Ammonia

Answer

**Step-by-Step Solution:**

1. **Understanding Water Pollutants**: Water pollutants are substances that contaminate water bodies, affecting their quality and the organisms living in them. These can include a variety of chemicals, biological agents, and physical materials.

2. **Identifying Major Sources of Water Pollution**: One of the primary sources of water pollution is industrial effluents. These are wastes produced by industries that are often released into water bodies without adequate treatment.

3. **Analyzing the Composition of Industrial Effluents**: Industrial effluents contain a variety of harmful substances. Common components include heavy metals (like mercury and cadmium), organic solvents, oils, and other chemicals that can be toxic to aquatic life.

4. **Impact of Industrial Effluents**: The presence of these pollutants can lead to severe ecological consequences. They can be corrosive and reactive, causing harm to aquatic organisms and disrupting ecosystems.

5. **Comparing Treatment Processes**: Treatment of industrial waste is generally more complex and costly compared to domestic sewage treatment. This is due to the hazardous nature of the pollutants involved in industrial waste.

6. **Conclusion**: Given the prevalence and harmful effects of industrial effluents, they are considered the most abundant water pollutants.

**Final Answer**: The most abundant water pollutant is industrial effluents.

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