Question

What is the characteristic of the mass above and below a landslide respectively?

(a) Both stable

(b) Both unstable

(c) Unstable and stable

(d) Stable and unstable

This question was addressed to me by my school teacher while I was bunking the class.

Question is from Types of Mass Movements topic in portion Mass Movements of Engineering Geology

Answer 1

Right option is (c) Unstable and stable

To elaborate: It is often characteristic of a landslide that the mass above the failure surface is unstable whereas the material lying below this surface is generally stable.