Final answer:
Soils are classified into suborders based on properties that influence soil formation, such as climate and organic activity, which are significant in determining the soil's horizons.
Step-by-step explanation:
Orders in soils are divided into suborders, primarily on the basis of properties that influence soil formation. These properties include factors such as climate, organisms, relief, parent material, and time, which are fundamental in determining the characteristics of the soil's horizons.
The differentiation into suborders allows soil scientists to classify and understand the soils in a more detailed way, considering the various aspects that affect their development and composition. The physical properties of the soil, including the O horizon (organic matter), A horizon (topsoil), B horizon (subsoil), and C horizon (soil base), are key indicators used in this classification.