Formation of soil takes place by

Options

A. Weathering
B. Pedogenesis
C. Melting
D. Both A and B.

Answer

**Step-by-Step Solution:**

1. **Understanding Soil Formation**: Soil formation is a complex process that involves various natural phenomena. It is essential to recognize the primary processes involved in the creation of soil.

2. **Weathering**: The first process is weathering, which refers to the breaking down of rocks into smaller particles. This can occur through physical, chemical, or biological means. Weathering does not involve the removal of the material but rather its disintegration or decomposition.

3. **Pedogenesis**: The second process is pedogenesis, also known as soil evolution. This process involves the development and changes in soil over time due to physical, biological, and chemical factors. It encompasses how soils are formed and modified in their characteristics.

4. **Combining Processes**: Both weathering and pedogenesis are crucial for soil formation. Weathering provides the raw materials (rock particles), while pedogenesis transforms these materials into soil through various processes.

5. **Exclusion of Other Processes**: It is important to note that melting (as in the melting of rocks) is not a process involved in soil formation. Therefore, it can be excluded from the options.

6. **Conclusion**: The correct answer to the question of how soil formation takes place is that it occurs through both weathering and pedogenesis.

**Final Answer**: The formation of soil takes place by both A (weathering) and B (pedogenesis).

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