Why has it been suggested that large earthquakes might be prevented by injecting water along isolated
portions of fault zones that have been inactive for an unusually long time? When was this technique
discovered? What will be an ideal response?
Local increase of fluid pressure can cause small earthquakes, which release stresses that would
otherwise build up to cause a larger earthquake. This phenomenon was first recognized when it was
discovered that liquid waste disposal by deep well injection at the Rocky Mountain Arsenal near
Denver, Colorado, was responsible for numerous small earthquakes in the area.
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Which of the following would be an anatomically accurate phrase?
Summarize the active, moving nature of the earth's crust, especially with regard to tectonic plates.
What will be an ideal response?
What are the six common nonsilicate mineral groups?
a. oxides, feldspars, carbonates, halides, sulfides, sulfates b. feldspars, micas, pyroxenes, amphiboles, olivines, clays c. oxides, native elements, carbonates, halides, sulfides, pyroxenes d. oxides, native elements, carbonates, micas, sulfides, sulfates e. oxides, native elements, carbonates, halides, sulfides, sulfates
Parallels run north and south and intersect meridians at 90° angles
a. True b. False Indicate whether the statement is true or false