The drainage density on clay soils is likely to have what relationship to the drainage density on gravel soils?
A)greater drainage density on clay soils
B)greater drainage density on gravel soils
C)equal drainage density, the soil type has no effect
D)greater drainage density on clay soils, but with fewer streams

Question

Quizplus · Accepted Answer

Clay soils tend to have lower permeability and hold more water than gravel soils, thus leading to slower drainage. As a result, the drainage density is likely to be greater on clay soils, meaning there are more streams to drain the water compared to gravel soils. However, the streams on clay soils may be smaller and more distributed, whereas gravel soils may have larger and fewer streams due to their higher permeability.

The Drainage Density on Clay Soils Is Likely to Have