1.

Landslides involve

A. Downslope movement of individual rock blocks which is usually not perceptible.
B. Rapid perceptible movement of relatively dry mass of earth debris or bed rock.
C. Slow to very rapid movement of water saturated rock debris.
D. Slow-flowing downslope masses of rock debris saturated with water.
Answer» C. Slow to very rapid movement of water saturated rock debris.


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