The moss which forms dense extensive mats on the soil prevents

Options

A. uprooting of trees
B. soil erosion
C. falling of leaves
D. evaporation of water from the soil

Explanation

**Step-by-Step Solution:**

1. **Understanding the Role of Mosses**: Mosses are small, non-vascular plants that often grow in dense mats on soil, rocks, or other surfaces. They are one of the pioneer species in ecological succession, particularly in harsh environments.

2. **Ecological Succession**: In the process of ecological succession, mosses and lichens are typically the first organisms to colonize bare surfaces, such as rocks. They help in the gradual development of soil by breaking down the rock and accumulating organic matter.

3. **Formation of Dense Mats**: As mosses grow, they form extensive mats. These mats are crucial because they help retain moisture and create a microhabitat for other organisms.

4. **Prevention of Soil Erosion**: One of the key benefits of these dense mats is that they prevent soil erosion. The mats hold the soil together, reducing the impact of water runoff and preventing the soil from being washed away during heavy rains.

5. **Conclusion**: Therefore, the moss that forms dense mats on the soil primarily prevents soil erosion. This is the correct answer to the question.

**Final Answer**: The moss which forms dense extensive mats on the soil prevents soil erosion.

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