A soil has a thick black A horizon, a distinct B horizon, has reasonably stable soil structure, and was formed under grassland natural vegetation. In which suborder is it most likely classed?
A) Udolls B) Aquents C) Ustalfs D) Udults E) Cambids
Question 2
Which of the following diagnostic horizons would likely not restrict root growth in soils?
A) petrocalcic B) placic C) fragipan D) albic E) salic