The orientation of rock layering within a hill can either enhance or hinder the chances of slope failure.

Question

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The orientation of rock layering, such as bedding plane or foliation, can influence the strength and stability of a hill slope. For instance, if layers are steeply dipping and prone to weathering and erosion, they can form weak zones where the overlying material can slide or collapse. In contrast, if layers are horizontal or gently dipping and well-cemented, they can provide resistance to sliding and erosion, thus enhancing the stability of the slope.

The Orientation of Rock Layering Within a Hill Can Either