Which of the following are the features of humus?
i. Light coloured amorphous substance
ii. Highly resistant to microbial action.
iii. Very high decomposition rate
iv. Reservoir of nutrients.
i. Light coloured amorphous substance
ii. Highly resistant to microbial action.
iii. Very high decomposition rate
iv. Reservoir of nutrients.
Answer & explanation
Correct answer: option 3
Humus is a dark coloured amorphous substance, highly resistant to microbial action, having a very low decomposition rate and a nutrient reservoir. It is formed by the process of humification.