How Do Drains Help to Prevent Landslides

question 37

Multiple Choice

How do drains help to prevent landslides?

• A) Drains keep water at the surface, so that only the upper part of the slope is saturated.
• B) Drains divert water away from the slope.
• C) Drains pull water deeper into the base of the slope.
• D) Drains anchor the soil to the ground keeping it from sliding.
• E) Drains do not prevent landslides.

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