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IAG_31 Complete Study Guide 2025/2026 with Solution and Exam Mastery

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Master IAG_31 with this comprehensive 2025/2026 study guide with solution. Strengthen understanding, practice key concepts, and achieve top exam results with clear explanations and step-by-step solutions.

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Biology 2e
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Biology 2e

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OpenStax Biology 2e Instructor Answer Guide


Biology 2e
Unit 6: Plant Structure and Function
Chapter 31: Soil and Plant Nutrition

Visual Connection Questions
1. Soil compaction can result when soil is compressed by heavy machinery or even foot traffic.
How might this compaction change the soil composition?




The air content of the soil decreases.

2. Which horizon is considered the topsoil, and which is considered the subsoil?




The A horizon is the topsoil, and the B horizon is subsoil.
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