Use of .............. in vehicle reduces pollution.

Options

A. petrol
B. diesel
C. CNG
D. none of these

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which fuel, when used in vehicles, reduces pollution. The options provided are petrol, diesel, and CNG.

2. **Analyzing Conventional Fuels**:
- **Petrol and Diesel**: Both petrol and diesel are traditional fuels used in vehicles. They are known to produce a significant amount of particulate matter and unburned gases during combustion, which contribute to air pollution.

3. **Introducing CNG**:
- **What is CNG?**: CNG stands for Compressed Natural Gas. It is natural gas that has been compressed to a high pressure for use as a fuel in vehicles.

4. **Comparing CNG with Petrol and Diesel**:
- **Environmental Impact**: CNG is known to produce far less particulate matter compared to petrol and diesel. This means that vehicles running on CNG contribute less to air pollution.
- **Economic Aspect**: CNG is also more economical than petrol and diesel, making it a cost-effective option for vehicle owners.

5. **Conclusion**: Based on the analysis, it is clear that using CNG in vehicles reduces pollution significantly compared to petrol and diesel.

6. **Final Answer**: The correct answer is CNG.

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