What is the angle of repose?
A) The angle of the slip plane from a slide
B) The steepest angle at which a material remains at rest
C) The angle of an inclined rock layer measured from a horizontal line
D) The angle of plunge into the interior
Answer: B
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Why does the velocity of a stream generally increase downstream even though the gradient decreases?
A wet-looking road surface on a clear, hot, dry day is an example of ____
a. ?a superior mirage b. ?scintillation c. ?diffraction d. ?condensation e. ?shimmering
Of the following, which is energized by the wind?
A) Tidal bores B) Ocean currents C) Tides D) Deep ocean circulation E) The cryosphere
What is the difference between an oceanic rift and an oceanic trench?
A. Rifts are where ocean crust is destroyed, and trenches are where ocean crust is created. B. Rifts mark divergent boundaries; trenches mark convergent boundaries. C. Rifts are younger than trenches. D. Rifts are deeper than trenches. E. There is no difference; they are just two different names for the same feature.