Humus is an example of

A. Soil structure

B. Organic colloids

C. Crystalloids

D. None of these

Answer: Option B

Solution(By Examveda Team)

Humus is dark organic matter present in fertile nutrient rich soil. It is an example of organic colloids, which means it is a mixture of tiny organic matter that cannot decay further or that are resistant to decay. Humus significantly affects the bulk density of soil and contributes to its retention of moisture and nutrients.