1.A) What is the force behind all mass wasting?? B) Define creep. ? C) List the

Question

1.A) What is the force behind all mass wasting??

B) Define creep. ?

C) List the 3 ways the ground surface can swell and shrink.

2.A) List the external causes of slope failures.

   ? B) List the internal causes of slope failures.

3.            List and briefly describe 5 things water can do to weaken earth material.

4.List and describe the 3 adverse geologic slope conditions that can cause failure.

5.List all of the things that can trigger a fall type mass wasting.

6.            A) List the 4 types of mass movements. ?

   B) List the two types of slides and give one example of each.

7.A) What causes slow ground subsidence? Where is this occurring today? ?

   B) What causes catastrophic subsidence? Where could this occur today?

Thought Question

1.Would you be willing to buy a home and live in La Conchita, California? Why or why not?

Explanation / Answer

1) A. Gravity force behind all mass wasting

1) B. creep (sometimes called cold flow) is the tendency of a solid material to move slowly or deform permanently under the influence of mechanical stresses. It can occur as a result of long-term exposure to high levels of stress that are still below the yield strength of the material. Creep is more severe in materials that are subjected to heat for long periods, and generally increases as they near their melting point.

The rate of deformation is a function of the material properties, exposure time, exposure temperature and the applied structural load. Depending on the magnitude of the applied stress and its duration, the deformation may become so large that a component can no longer perform its function

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