Q.

What is the purpose of surface drainage control works in landslide mitigation?

A. To strengthen the soil
B. To reduce earthquake impacts
C. To control the movement of water and prevent soil saturation
D. To promote vegetation growth
Answer» C. To control the movement of water and prevent soil saturation
Explanation: These works aim to manage water flow, preventing it from infiltrating and further destabilizing landslide-prone areas.
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