The process of mineralisation by microorganisms helps in the relase of

Options

A. inorganic nutrients from humans
B. both organic and inorganic nutrients from detritus
C. organic nutrients from humus
D. inorganic nutreints from detritus and formation of humus.

Explanation

**Step-by-Step Solution:**

1. **Understanding Mineralization**:
- Mineralization is the process through which microorganisms break down organic matter, leading to the release of inorganic substances. This is crucial for nutrient cycling in ecosystems.

2. **Identifying the Nutrients Released**:
- During mineralization, microorganisms convert organic nutrients (like those found in humus) into inorganic forms. These inorganic nutrients include essential minerals such as calcium (Ca²⁺), magnesium (Mg²⁺), and potassium (K⁺), as well as non-minerals like carbon dioxide (CO₂) and water (H₂O).

3. **Role of Humus**:
- Humus is a stable organic component of soil formed from the decomposition of plant and animal matter. Nutrients can become trapped in humus, which can slow down the mineralization process.

4. **Microorganisms and Nutrient Cycling**:
- Microorganisms play a dual role in nutrient cycling: they facilitate both mineralization (release of inorganic nutrients) and immobilization (trapping of nutrients in organic forms). This means that while they help release nutrients, they can also temporarily hold onto them, affecting their availability.

5. **Conclusion**:
- Based on the understanding of mineralization and its role in nutrient cycling, the correct answer to the question is that the process of mineralization by microorganisms helps in the release of **inorganic nutrients from humus**.