Answer: A. permeability
Explanation:
Permeability is also called as hydraulic conductivity, which refers to the ability of a soil to conduct water. Hydraulic conductivity is measured in terms of how far water will move through soil in a give time.
Composition of soil refers to the nutrients and various other substances present in the soil. Composition is of four basic categories: water, air, organic matter and minerals.
Formation of soil refers to the the formation of fragmented substance formed by the process of weathering of rocks which supports the growth of plants.
Texture of soil refers to the relative percentage of sand, silt and clay in a soil.