In Delhi, public transport use:

Options

A. LPG as a fuel
B. CNG as a fuel
C. Hydrogen as a fuel
D. Petrol as a fuel

Answer

**Step-by-Step Solution:**

1. **Understanding Public Transport in Delhi**:
- In Delhi, public transport is a significant aspect of the city's infrastructure. It includes buses, auto-rickshaws, and taxis that are used by a large number of people daily.

2. **Fuel Used for Public Transport**:
- The primary fuel used for public transport in Delhi is Compressed Natural Gas (CNG). CNG is a cleaner alternative to traditional fuels like petrol and diesel.

3. **Why CNG is Considered Cleaner**:
- CNG is considered a cleaner fuel because it produces fewer harmful emissions compared to petrol and diesel. This results in less air pollution.

4. **Comparison with Other Fuels**:
- When comparing CNG with petrol and diesel, it is important to note that CNG emits lower levels of nitrogen dioxide, carbon dioxide, and sulfur dioxide. These gases are known contributors to air pollution.

5. **Environmental Impact**:
- The use of CNG in public transport helps in reducing the overall pollution levels in Delhi, making it a more environmentally friendly option.

6. **Conclusion**:
- Therefore, the use of CNG in public transport is a crucial step towards improving air quality in urban areas like Delhi.

---