How can public transportation improve air quality?

How can public transportation improve air quality?

• A. By increasing the number of cars on the road
• B. By providing free rides to all passengers
• C. By reducing the number of vehicles on the road and lowering emissions
• D. By expanding airport services

Answer: (C)

Public transportation can significantly improve air quality by reducing the number of vehicles on the road and consequently lowering overall emissions. When more people utilize buses, trains, or other forms of public transit instead of personal vehicles, there are fewer cars emitting pollutants such as nitrogen oxides, carbon monoxide, and particulate matter that contribute to air pollution. This shift not only minimizes traffic congestion but also enables the use of larger, more efficient vehicles that often have better emission controls than many older personal cars. Public transportation systems can also integrate greener technologies, such as electric buses or hybrid trains, further enhancing their positive impact on air quality. In contrast, other options like increasing the number of cars on the road would lead to higher emissions, while providing free rides does not directly address the fundamental issue of vehicle numbers and emissions. Expanding airport services is unrelated to the primary goal of reducing urban air pollution from ground transportation.

Public transportation can significantly improve air quality by reducing the number of vehicles on the road and consequently lowering overall emissions. When more people utilize buses, trains, or other forms of public transit instead of personal vehicles, there are fewer cars emitting pollutants such as nitrogen oxides, carbon monoxide, and particulate matter that contribute to air pollution.

This shift not only minimizes traffic congestion but also enables the use of larger, more efficient vehicles that often have better emission controls than many older personal cars. Public transportation systems can also integrate greener technologies, such as electric buses or hybrid trains, further enhancing their positive impact on air quality.

In contrast, other options like increasing the number of cars on the road would lead to higher emissions, while providing free rides does not directly address the fundamental issue of vehicle numbers and emissions. Expanding airport services is unrelated to the primary goal of reducing urban air pollution from ground transportation.