Most common and commerical water pollutant is

Options

A. Industrial waste
B. Fertilizers
C. Detergents
D. PCB's

Answer

**Step-by-Step Solution:**

1. **Understanding Water Pollutants**: Water pollutants can be classified into various categories, including industrial waste, agricultural runoff (fertilizers), and household waste (detergents).

2. **Identifying Common Water Pollutants**:
- **Industrial Waste**: This includes chemicals and materials released from factories and industries into water bodies.
- **Fertilizers**: These are used in agriculture and can run off into water bodies, causing pollution.
- **Detergents**: Commonly used in households, these can also contribute to water pollution.

3. **Analyzing Commercial Water Pollutants**:
- **Fertilizers**: While they are a common pollutant, they are not considered a commercial pollutant in the same sense as industrial waste.
- **Detergents**: Similar to fertilizers, they are common but are not classified as commercial pollutants.
- **Industrial Waste**: This is the most significant commercial water pollutant because it is produced by industries and is often released into water bodies without proper treatment.

4. **Conclusion**: The most common and commercial water pollutant is **industrial waste**. This is due to its widespread production and the lack of adequate treatment before it enters water bodies.

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