Slumps are _____
a. rotational slides where earth moves along a concave, curved surface
b. free falls of mud
c. linear flows of ice and snow
d. slow creep of rock
e. small avalanches of debris
a
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The lowest notch shown on this figure is 9 meters wide and 5 meters high from its base. The river has a velocity of 1 meter per second when it fills the notch. Based on the accompanying graph, what is the probability each year that the notch will be filled to the top?
A) 90% to 95%
B) 60% to 80%
C) 40% to 45%
D) Less than 40%
E) None of these are correct.
Greeks had moved into Europe by
A. 2500 B.C. B. 2000 B.C. C. 1500 B.C. D. 1000 B.C
All volcanoes ____
A)fall into one of five very distinct categories B)display both lava flows and pyroclastic flows C)form on either a convergent or a divergent plate boundary D)have a conduit leading to a magma chamber beneath the surface E)erupt on very short notice, making it difficult for people to prepare
Building codes in many earthquake prone areas require homes and apartments to be designed to withstand a ________ Richter magnitude quake
A) 5.2 B) 7.8 C) 2.1 D) 6.0 E) 9.3