Air pollution is not reduced by

Options

A. Using precipitators
B. Resusing wastes
C. Cleaning air
D. all the above

Answer

To solve the question "Air pollution is not reduced by," we need to analyze each option provided and determine which one does not contribute to reducing air pollution.

### Step-by-Step Solution:

1. **Understanding Air Pollution**:
- Air pollution is primarily caused by harmful emissions from vehicles and industries, including oxides of nitrogen, sulfur, and carbon.

2. **Analyzing the Options**:
- **Option 1: Using Precipitators**:
- Precipitators are devices that remove dust and particulate matter from emissions. By doing so, they help keep the air clean. Therefore, this option does contribute to reducing air pollution.
- **Option 2: Reusing Wastes**:
- Reusing wastes minimizes the production of non-degradable waste, which indirectly helps reduce air pollution by reducing the need for incineration and landfill emissions. However, it does not directly reduce air pollution itself. This option is likely the correct answer to the question.
- **Option 3: Cleaning Air**:
- Cleaning the air involves methods such as reducing fossil fuel combustion and using catalytic converters in vehicles. These actions directly contribute to reducing air pollution. Therefore, this option also contributes to reducing air pollution.
- **Option 4: All of the Above**:
- This option suggests that all previous options do not reduce air pollution, which contradicts our analysis since both using precipitators and cleaning air do help reduce pollution.

3. **Conclusion**:
- The option that does not contribute to reducing air pollution is **Option 2: Reusing Wastes**. While it has environmental benefits, it does not directly reduce air pollution.

### Final Answer:
Air pollution is not reduced by **Reusing Wastes**.

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