On this map of South America and adjacent areas, which site would have earthquakes along a subduction zone?
A) 1, the oceanic trench
B) 2, below the magmatic belt
C) 3, along a passive margin
D) 4, in the middle of the Atlantic Ocean
E) Both 1 and 2.
E) Both 1 and 2.
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Thin films of water on sand grains ____
a. ?can either increase or decrease cohesion depending on grain size b. ?reduce cohesion and increase resisting forces c. ?reduce cohesion and decrease resisting forces d. ?increase cohesion and decrease resisting forces e. ?increase cohesion and increase resisting forces
Arête, horn, cirque, are features observed as a result of
A. glacial accumulation. B. glacial erosion. C. glacial deposition. D. glacial ablation.
A newly discovered conventional oil reserve is most likely to be found
A) beneath the sea floor. B) in the Middle East. C) in Texas. D) in the Appalachian Mountains.
Photographs of smoothed streambed rock with surfaces eroded by water-driven pebbles from the surface of ____
provide evidence of past water flow. a. Europa b. Saturn c. Jupiter d. Mars
e. Titan