Question

The comprehensive system of soil classification is based on

• A. Soil colour and vegetation
• B. Soil environmental factors
• C. Measurable soil properties
• D. Intrinsic properties of soil

Hint:

Soil classification focuses on quantifiable, objective soil properties.

Answer 1

The Correct Option is C

Step 1: Older classification schemes relied on inferred formation factors like climate and vegetation.
Step 2: The comprehensive Soil Taxonomy system instead uses quantifiable diagnostic properties, such as horizon depth, clay percent and base saturation.
Correct option: Measurable soil properties.