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.
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.
