Private Pesticide Applicators Practice Exam

In soil with lower organic content, more rapid water flow is most likely to occur due to the reduced ability of the soil to retain moisture. Organic matter plays a crucial role in improving soil structure, which enhances the soil's ability to absorb and hold water. Soils rich in organic matter have more stability and better aggregation, allowing water to percolate slowly and be retained in the soil profile.

In contrast, soils with lower organic content are often more compact and lack the necessary structure to hold onto moisture, leading to increased water flow. This rapid movement of water can also contribute to surface runoff, where water quickly flows over the soil surface rather than being absorbed, further highlighting the impact of low organic content on water dynamics in the soil.