The process of mineralisation by micro-organisms helps in the release of

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding Mineralization**: Mineralization is a process carried out by microorganisms that involves the breakdown of organic matter. During this process, microorganisms decompose organic materials, leading to the release of various minerals.

2. **Types of Minerals Released**: The minerals released during mineralization can be categorized into two types:
- **Inorganic Minerals**: These include substances like carbon dioxide (CO2) and water (H2O).
- **Organic Minerals**: These include essential nutrients such as calcium (Ca), magnesium (Mg), potassium (K), and ammonium ions (NH4+).

3. **Role of Microorganisms**: Microorganisms play a crucial role in feeding on organic matter. They help convert complex organic compounds into simpler inorganic and organic forms, which can then be utilized by plants.

4. **Process of Nutrient Trapping**: During mineralization, nutrients are trapped in a stable form known as humus. Humus is an important component of soil that retains moisture and nutrients, preventing them from being washed away (a process known as leaching).

5. **Importance for Plants**: The nutrients released through mineralization become available to plants, which absorb them through their roots. This is essential for plant growth and development.

6. **Return of Nutrients to Soil**: When plants and animals die, their organic matter is again broken down by microorganisms, returning the minerals back to the soil and continuing the cycle of nutrient availability.

7. **Conclusion**: Therefore, the process of mineralization by microorganisms helps in the release of essential nutrients, both inorganic and organic, which are crucial for the growth of plants.

**Final Answer**: The process of mineralization by microorganisms helps in the release of essential nutrients, including inorganic minerals like carbon dioxide and water, and organic minerals like calcium, magnesium, potassium, and ammonium ions.

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