Q. Humus is
A) Dark coloured amorphous organic matter rich in lignin
B) Dark coloured organic matter rich in cellulose
C) Both (a) and (b)
D) Red coloured substances rich in iron
Explanation
Humus is dark coloured amorphous substance rich in lignin and cellulose
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.