Civil Engineering PE

Answer: C - A soil profile is a plane at right angles to the surface of the soil. A soil profile is exposed by cutting vertically through the soil. A soil profile description, as provided on a typical boring log, includes soil properties that were determined by testing and analyzing each stratum of the soil column. The width of a soil profile can vary between a few inches to several yards or greater, depending on local geomorphological and hydrogeological variability.