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:Soil profile important in agriculture because it?The A-Horizon of the soil profile is also called the?Which of the following is a similarity between a…In a soil profile; the C-horizon can be described as the?The most important action in the A horizon of a soil…