An increase in fluid pressure causes:
a. a decrease in effective normal stress
b. an increase in shear strength
c. a decrease in cohesion
d. a decrease in angle of internal friction
a
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Which of the following is NOT a problem associated with groundwater mining?
A. subsidence. B. increased cost to pump the water to the surface. C. increased likelihood that the aquifer will become contaminated. D. saltwater intrusion.
Geologists may choose to lick a mineral to identify it. What mineral is the geologist expecting with this test?
A) NaCl (halite) or KCl (sylvite) B) a sulfide bearing rock which will taste like rotten eggs C) None, it clears the dust off the sample so he/she can see if more clearly. D) None, they are clearing the hydrochloric acid from the sample to rerun a test for calcite.
What does Newton's gravitational model fail to consider when determining influences on tides?
a. The position of the moon and sun b. The attraction of the moon, sun, and Earth c. The position of continental landmasses d. The influence of the moon and sun together e. The circular movement of water in an ocean basin
Which of the following would be considered a point source of pollution?
A) industrial wastewater discharge B) agricultural runoff C) street runoff D) yard fertilizer in runoff