Final answer:
Transportation systems are becoming more energy-efficient and sustainable through alternative fuels and technological advancements.
Step-by-step explanation:
Transportation systems are evolving to become more energy-efficient and sustainable through various strategies.
One approach is the development of alternative fuels, such as biofuels, hydrogen, and electric power. These fuels produce fewer emissions and are renewable, reducing the carbon footprint of transportation.
Another strategy is the improvement of vehicle efficiency through technological advancements. This includes the use of lightweight materials, aerodynamic designs, and hybrid or electric drivetrains.
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