Domestic sewage is an example for

Options

A. biodegradable pollutant
B. non degradable pollutant
C. primary pollutant
D. minor pollutant

Answer

**Step-by-Step Solution:**

1. **Understanding Domestic Sewage**: Domestic sewage is defined as a mixture of water and waste products generated from households. This includes human waste, food scraps, and other biodegradable materials.

2. **Identifying Types of Pollutants**: We need to categorize domestic sewage into one of the given options:
- Biodegradable pollutant
- Non-biodegradable pollutant
- Primary pollutant
- Minor pollutant

3. **Analyzing Biodegradable Pollutants**: Biodegradable pollutants are substances that can be broken down by natural processes. They do not persist in the environment and can be decomposed by microorganisms. Since domestic sewage contains organic matter, it fits this category.

4. **Analyzing Non-Biodegradable Pollutants**: Non-biodegradable pollutants, such as plastics, do not decompose and can accumulate in the environment, causing harm. Domestic sewage does not fall into this category.

5. **Analyzing Primary Pollutants**: Primary pollutants are directly emitted into the environment and include substances like carbon monoxide and sulfur dioxide. Domestic sewage is not classified as a primary pollutant.

6. **Analyzing Minor Pollutants**: Minor pollutants are harmful substances that can have adverse effects on health and the environment, such as methane. While domestic sewage can produce minor pollutants, it is primarily classified based on its composition.

7. **Conclusion**: Given that domestic sewage is primarily composed of biodegradable materials, the correct classification is that it is an example of a **biodegradable pollutant**.

**Final Answer**: Domestic sewage is an example of a **biodegradable pollutant**.

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