Environmental Science for AP* (2nd Edition)

Published by W. H. Freeman
ISBN 10: 1464108684
ISBN 13: 978-1-46410-868-6

Chapter 12 - AP Environmental Science Practice Exam - Section 1: Multiple Choice-Questions - Page 428: 3

Answer

A

Work Step by Step

It is asking for the most fuel-efficient mode of transportation, and a train carries more passengers for the same amount of joules per kilometer. Also, buses, cars, and airplanes run on non-renewable resources, while recent trains have been developing and running on renewable resources, such as solar panels.
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