Depending on the percentage of sand, silt, clay, soils are divided into _______ textural classes:
Correct answer: A. 12
- A. 12
- B. 13
- C. 14
- D. 09
Explanation
The USDA soil-texture triangle recognizes 12 textural classes, including sand, loamy sand, loam, silt loam, clay loam and clay. These classes are based on the proportions of sand, silt and clay.
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