Q. Consider the following statements regarding humus:

1. Humus undergoes decomposition at an extremely slow rate.
2. Humus is colloidal in nature and serves as a reservoir of nutrients.

Which of the above statements is / are correct?
Answer: Both 1 and 2
Notes: Humus is produced during soil decomposition processes, specifically humification. It is highly resistant to microbial action, resulting in an extremely slow rate of decomposition. Additionally, due to its colloidal nature, humus acts as a vital reservoir of nutrients, playing a crucial role in soil fertility and nutrient stabilization. Hence, both statements are correct.