Q. Humus layer in soil composed of dead fresh organic matter called
A) Litter
B) Duff
C) Real humus
D) Compost
Explanation
The organic matter in soil is humus which is rich in N, P, K. Three distinct layers of humus in soil are litter (dead fresh organic matter), duff (partially decomposed litter) and real humus.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.