Question

a chronicle of new vehicle fuel economies was published by the u.s. environmental protection agency in the 2020 automotive trends report. which of the following factors is most likely to have triggered the change in fuel economy between 1975 to 1984? choose 1 answer: a growth in vehicle horsepower allowed for an increase in fuel economy. lighter weight vehicle technology allowed for higher fuel economies. a decline in vehicle horsepower caused fuel economy to decrease. heavier weight vehicle technology allowed for an increase in fuel economy.

Explanation:

Lighter - weight vehicles generally require less fuel to operate, which can lead to higher fuel economies. Higher horsepower doesn't directly correlate with increased fuel economy as more power often means more fuel consumption. Declining horsepower doesn't necessarily cause a decrease in fuel economy, and heavier - weight vehicles typically have lower fuel economies.

Answer:

B. Lighter weight vehicle technology allowed for higher fuel economies.