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How does the surface roughness of granite prevent soil erosion?
Granite, a naturally durable and coarse-textured rock, plays a significant role in preventing soil erosion. Its surface roughness creates micro-irregularities that disrupt the flow of water, reducing the speed and volume of runoff. This allows more water to infiltrate the soil, minimizing the displacement of topsoil particles.
The rough surface of granite also promotes the growth of mosses and lichens, which further stabilize the soil by binding it together. Additionally, granite's hardness ensures long-term resistance to weathering, making it an ideal material for erosion control in slopes, riverbanks, and coastal areas.
Unlike smoother surfaces, granite's textured finish traps sediments and organic matter, enhancing soil fertility over time. This natural mechanism highlights granite's ecological value beyond its aesthetic and construction applications, offering a sustainable solution for land preservation.
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