Availability of water and minerals in the soil for maximum absorption by roots is in the -

Options

A. B-horizon
B. C-horizon
C. A-horizon
D. surface of soil

Answer

To answer the question regarding the availability of water and minerals in the soil for maximum absorption by roots, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Soil Horizons**:
- Soil is composed of different layers known as horizons. The main horizons are O, A, B, and C.

2. **Identifying the Horizons**:
- **O Horizon**: This is the topmost layer, primarily composed of organic matter like decomposed leaves. It has nutrients but is not where roots primarily grow.
- **A Horizon**: This layer, also known as topsoil, is rich in organic matter and nutrients. It is soft, porous, and has a high water retention capacity, making it ideal for root growth and absorption.
- **B Horizon**: This layer is below A and contains materials leached from the A horizon. It has some organic matter but is not as nutrient-rich as A.
- **C Horizon**: This layer consists of weathered rock and has minimal nutrients and minerals available for plants.

3. **Conclusion**:
- The A horizon is where the maximum absorption of water and minerals occurs due to its nutrient-rich composition and high water retention capacity. Therefore, the correct answer is the A horizon.

### Final Answer:
The availability of water and minerals in the soil for maximum absorption by roots is in the **A horizon**.

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