Environmental Science for AP* (2nd Edition)

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

Chapter 8 - Module 25 - Weathering and Soil Science - AP Review Questions - Page 286: 5

Answer

Aluminium

Work Step by Step

This is because aluminium is a soil acid, and base saturation is the ratio of soil bases to soil acids. If soil acids (in the denominator) increase, it would result in the decrease of the value of base saturation.
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