The safety factor of a slope is:
a. the ratio of the shear stress to shear strength
b. the ratio of the normal stress to the tangential stress
c. the ratio of the driving forces to the resisting forces
d. the ratio of the resisting forces to the driving forces
d
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Describe dripstone and how it forms. What will be an ideal response?
Compared to Debris flow, Mudflow is different because Mudflow
a. Composed of smaller-sized particles b. Rarely confined to preexisting channels c. Can transport larger objects d. all of the above e. both a and b
The most widespread negative health impact of air pollution is the
A) destruction of the cellular components of the immune system. B) loss of the ability to absorb vital nutrients by the digestive system. C) disruption of the signaling processes of the endocrine system. D) chronic stress that weakens many systems of the body.
Which of the following is NOT true of incremental processes?
A. They can be difficult to recognize. B. They generate very small changes with time. C. Deforestation is an example of an incremental process. D. They take place somewhat randomly as discrete events. E. Climate change is an example of an incremental process.