MindTap Environmental Science, 1 term (6 months) Printed Access Card for Miller/Spoolman's Environmental Science, 16th
MindTap Environmental Science, 1 term (6 months) Printed Access Card for Miller/Spoolman's Environmental Science, 16th
16th Edition
ISBN: 9781337612760
Author: G. Tyler Miller, Scott Spoolman
Publisher: Cengage Learning
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Chapter 13, Problem 2CR
To determine

The two key concepts for this section. The main source of energy on earth. The concept of commercial energy and its source in the world and in the United States. The percent source of the commercial energy from nonrenewable fossil fuels that are used in the world and in the United States. The concept of net energy and its importance in evaluating energy resources. The necessity of subsidization of some energy resources by using the net energy concept and an example of such a resource.

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