Essentials of Geology (Fifth Edition)
Essentials of Geology (Fifth Edition)
5th Edition
ISBN: 9780393263398
Author: Stephen Marshak
Publisher: W. W. Norton & Company
Question
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Chapter 12, Problem 1RQ
To determine

The fundamental sources of energy.

Expert Solution & Answer
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Answer to Problem 1RQ

Energy comes from several sources, such as solar radiation, gravity, chemical reactions, radioactive decay, and the Earth’s internal heat, nuclear reactions.

Explanation of Solution

There are several fundamental sources of energy in the Earth’s system and they are energy directly from the sun: formed by nuclear fusion reactions in the sun; energy directly from gravity: gravitational attraction force between the moon and sun; energy involving solar energy and gravity; energy via photosynthesis; energy from fossil fuels (oil, natural gas, and coal); energy from inorganic chemical reactions; energy from nuclear fission; and energy from the Earth’s internal energy.

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