Soil Composition and Properties Practice Test

Transmit water through connected pore spaces, influencing drainage rate and how quickly water percolates through the soil profile.

Reflect sunlight from the surface, determining soil temperature and therefore the rate of decomposition and humus formation.

Resist erosion by wind, determined only by vegetation cover and unrelated to particle size or aggregation.

Store nutrients in the form of nitrate and phosphate, determining fertility regardless of rainfall or irrigation practices.