Campbell Biology (10th Edition)

Published by Pearson
ISBN 10: 0321775651
ISBN 13: 978-0-32177-565-8

Chapter 52 - Test Your Understanding - Level 3 - Synthesis/Evaluation - Page 1183: 13

Answer

The darker colored earth and rocks may absorb and hold more heat, causing more snow to melt and more earth to be exposed.

Work Step by Step

A positive feedback loop is one that is self-encouraging. In this case, melting snow creates more melting snow—the first snow melting creates conditions that cause more snow to melt, which continues on to cause more snow to melt, and so on.
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