The ability of a soil to absorb and allow water and air to pass through is related to all of the following except:

The ability of soil to absorb and allow water and air to pass through is largely influenced by its texture, granular structure, and chemical composition.

Texture refers to the size distribution of soil particles, including sand, silt, and clay. Soils with a good balance of these particles, particularly those with higher sand content, typically exhibit better drainage and aeration properties. Granular structure, which is the arrangement of soil particles into aggregates, also plays a significant role in facilitating water and air movement through the soil.

Chemical composition can impact water retention and the overall health of the soil, but it is not a direct measure of the physical properties that affect the permeability of the soil. It encompasses the various chemicals present in the soil that can influence its capacity to support plant life, rather than directly affecting the soil's permeability or its ability to allow air and water passage.

Cation exchange capacity is a measurement of how well soil can retain and supply cations to plant roots, which is more related to nutrient availability rather than physical properties like airflow and drainage. This is why cation exchange capacity is not directly related to the soil’s physical ability to absorb and allow water and air to pass through.