Caliche soil is recognized by its

• A. Abundance of hummus
• B. High alkaline content due to excess lime
• C. Ability to drain well
• D. Tiny granules that promote deep water penetration

Answer: (B)

Caliche soil is recognized by its high alkaline content due to excess lime. In dry and semi‑dry climates, calcium carbonate accumulates in the soil, forming a cemented layer that raises the pH and gives a lime-rich, often white or pale crust. This lime content is the defining feature you’d look for in the field. By contrast, an abundance of hummus would point to organic-rich soils, a soil that drains well contradicts caliche’s tendency to impede drainage, and the idea of tiny granules promoting deep water penetration doesn’t fit a cemented, lime‑rich layer.