Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 27 - Think and Explain: 69

Answer

See below.

Work Step by Step

At sunset, after an active day for humans and animals alike, there is generally more dust (and other particles) in the air. This is especially true near cities. The extra scattering makes for a more colorful sunset.
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