What are the four environmental labels used to classify vehicles according to their level of pollution?
Preventive and Efficient Driving – Observation and Fuel Saving
Explanation
The **environmental labels** are tags that classify vehicles according to their level of pollution. There are **four types** of labels:
1. **Zero emissions**: For vehicles that do not emit polluting gases.
2. **ECO**: For hybrid vehicles or those using alternative fuels and emitting fewer polluting gases.
3. **C**: For gasoline and diesel vehicles that meet certain emission standards.
4. **B**: For older vehicles that still meet some emission standards.
These labels help authorities manage traffic and improve air quality, allowing only less polluting vehicles to access certain areas of the city. Therefore, the four correct labels are **0 emissions, ECO, C, and B**.
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