What Would Make a Hill Slope Less Stable?

Water can seep into the soil or rock and replace the air in the pore space or fractures. Since water is heavier than air, this increases the weight of the soil. Weight is force, and force is stress divided by area, so the stress increases and this can lead to slope instability.

What Would Make a Hill Slope Less Stable?

A hill slope is less stable when it is steep, has a lot of vegetation, and when there is rainfall or melting snow.

The hill slope can also be less stable if the ground is dry and crumbly.

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