Planar slides typically occur along bedding planes, foliation, or joint planes oriented ________ to the slope
A) perpendicular
B) parallel
C) normal
D) adjacent
Answer: B
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Suppose a high concentration of oxygen 16 was found in the ice caves of Antarctica and Greenland. Which of the following conditions likely occurred at the time the ice was formed?
A. cold air temperatures B. intense ultraviolet radiation C. the caves were under the ocean D. mild winters
The frequency of a phenomenon over a given study area is defined as ________
Fill in the blank(s) with the appropriate word(s).
As a rule, thunderstorms are unknown poleward of ________ latitude.
A. 35° B. 60° C. 85° D. 40°
Pure ice is a mineral while pure liquid water is not. Why?
A. Liquid water does not have a definite chemical composition. B. Liquid water does not have an orderly internal arrangement of atoms. C. Liquid water does not occur naturally. D. All of the choices are correct.