The topmost layer of a typical soil profile is? by Sunday | Apr 21 | Biology NECO | 0 comments A. clay B. coarse sand C. fine sand D. gravel E. humus Correct Answer: Option E – humus Users Also Read These:In which layer of the soil profile does most…In a soil profile; the C-horizon can be described as the?The most predominant action in the first horizon of…In which layer of the soil profile do most…The B-Horizon of soil profile is also called the?