The single best way to reduce acid deposition would be to

Options

A. Prohibit the construction of nuclear power plants.
B. Enhance the use of kerosene oil.
C. Decrease emissions from automobiles
D. Reduce the use of coal

Answer

**Step-by-Step Solution:**

1. **Understanding Acid Deposition**: Acid deposition, commonly known as acid rain, occurs when sulfur dioxide (SO2) and nitrogen oxides (NOx) are released into the atmosphere and react with water vapor, oxygen, and other chemicals. This results in the formation of sulfuric and nitric acids, which then fall to the ground as precipitation.

2. **Identifying Sources of Acid Deposition**: The primary sources of sulfur dioxide and nitrogen oxides are the burning of fossil fuels, particularly coal, oil, and gas. Automobiles also contribute to nitrogen oxides emissions.

3. **Evaluating the Options**:
- **Prohibit the construction of nuclear power plants**: This option is irrelevant to acid deposition since nuclear power plants do not emit sulfur dioxide or nitrogen oxides.
- **Enhance the use of kerosene oil**: Kerosene is a fossil fuel and its increased use would likely contribute to air pollution rather than reduce acid deposition.
- **Decrease emissions from automobiles**: While this could help reduce nitrogen oxides, it does not address the primary source of sulfur dioxide, which is coal.
- **Reduce the use of coal**: This option directly targets the main contributor to acid deposition. Coal combustion releases significant amounts of sulfur dioxide, which is a key precursor to acid rain.

4. **Conclusion**: The most effective way to reduce acid deposition is to reduce the use of coal, as it is the largest source of sulfur dioxide emissions.

**Final Answer**: The single best way to reduce acid deposition would be to reduce the use of coal.

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