### Analysis of Options

1. **Cadmium**: This heavy metal can cause serious health issues, including kidney damage and bone deterioration. It is not a primary pollutant from automobile exhaust.

2. **Silver**: While toxic in certain forms and concentrations, silver is not commonly associated with automobile emissions.

3. **Lead**: Historically, lead was a significant pollutant from gasoline, especially before the banning of leaded fuels in many countries. It is known for its serious health effects, including neurological damage.

4. **Manganese**: Manganese can also be found in gasoline and can affect the nervous system when exposure is high, but it is less commonly acknowledged compared to lead.

### Conclusion

**Lead** has long been recognized as one of the most dangerous metal pollutants associated with automobile exhaust due to its extensive health impacts and historical prevalence.

### Final Answer
The most dangerous metal pollutant of automobile exhaust is **lead**.

Question

### Analysis of Options

1. **Cadmium**: This heavy metal can cause serious health issues, including kidney damage and bone deterioration. It is not a primary pollutant from automobile exhaust.
  
2. **Silver**: While toxic in certain forms and concentrations, silver is not commonly associated with automobile emissions.

3. **Lead**: Historically, lead was a significant pollutant from gasoline, especially before the banning of leaded fuels in many countries. It is known for its serious health effects, including neurological damage.

4. **Manganese**: Manganese can also be found in gasoline and can affect the nervous system when exposure is high, but it is less commonly acknowledged compared to lead.

### Conclusion

**Lead** has long been recognized as one of the most dangerous metal pollutants associated with automobile exhaust due to its extensive health impacts and historical prevalence.

### Final Answer
The most dangerous metal pollutant of automobile exhaust is **lead**.

Knowee AI · Accepted Answer

### Analysis of Options

1. **Cadmium**: This heavy metal can cause serious health issues, including kidney damage and bone deterioration. It is not a primary pollutant from automobile exhaust.
  
2. **Silver**: While toxic in certain forms and concentrations, silver is not commonly associated with automobile emissions.

3. **Lead**: Historically, lead was a significant pollutant from gasoline, especially before the banning of leaded fuels in many countries. It is known for its serious health effects, including neurological damage.

4. **Manganese**: Manganese can also be found in gasoline and can affect the nervous system when exposure is high, but it is less commonly acknowledged compared to lead.

### Conclusion

**Lead** has long been recognized as one of the most dangerous metal pollutants associated with automobile exhaust due to its extensive health impacts and historical prevalence.

### Final Answer
The most dangerous metal pollutant of automobile exhaust is **lead**.

he most dangerous metal pollutant of automobile exhaust is(1 Point)cadmiumsilverleadmanganese

Question

The most dangerous metal pollutant of automobile exhaust is

Solution

Analysis of Options

Conclusion

Final Answer

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