What are examples of energy-efficient transportation?

Energy-efficient transportation refers to modes of transit that minimize energy use and reduce environmental impact. The selection that includes bikes, walking, and carpooling represents energy-efficient options because:

• Bicycling is a zero-emission mode that relies solely on human power, making it an extremely clean and energy-efficient way to travel short distances.

• Walking is another environmentally friendly option, as it does not require any fuel or energy other than that produced by the individual's body. This eliminates any contribution to greenhouse gas emissions.

• Carpooling combines the use of vehicles in a way that decreases the number of trips taken by individuals. By sharing a ride, fewer cars are on the road, leading to reduced fuel consumption and lower emissions per person.

In contrast, cars and motorcycles generally rely on fossil fuels, making them less energy-efficient options compared to the alternatives listed in the correct choice. Public buses and trains can be energy-efficient under certain circumstances, especially when they are fully utilized, but they still consume energy in a way that can be less efficient than non-motorized options. Air travel and taxis generally contribute a significant amount of greenhouse gases per passenger mile, making them among the least energy-efficient transportation options. Thus, the selected answer highlights the most sustainable practices in