Which of the following factors explains why the world's deserts exist at 30o latitude?
A. the sinking air of the subtropical highs
B. the convergence of the prevailing westerlies and the northeast trades
C. the location of the intertropical convergence zone
D. the sinking air of the polar front
Answer: A
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What is the Asia Pivot?
A) the shift of American military away from the Middle East and toward the Asia-Pacific world, namely with the establishment of small "lily-pad" bases scattered across the Pacific B) the pivot of the global economy away from the United States and onto the focus of the Pacific Rim C) the peace talks sponsored by the United States to end the geopolitical tensions between China and Taiwan D) the establishment of a new trade agreement with the nations of the Far East, such as China and Japan E) the trilateral military alliance between the United States, Japan and China
Match the features of a subduction zone with the manner of formation
A) Where pyroclastic materials and sediments eroded from landmasses collect on the opposite side of the island arc from the trench B) Where pyroclastic materials and sediments eroded from landmasses collect between the island arc and the trench C) Partial melting of subducting plates create magma, which rises to the surface D) Where the subducting slabs of oceanic lithosphere descend into the asthenosphere 1) Volcanic arc 2) Deep-ocean trench 3) Fore-arc region 4) Back-arc region
Fluid might be injected along a locked section of fault to
A. reduce resistance to shear along the fault, allowing creep to occur. B. cushion the shock of the next earthquake. C. cause the rocks to swell and close the fault. D. reduce the risk of fire from an earthquake.
When considering the global ecological footprint, a path to sustainability would be expected to
a. decrease ecological debt and increase ecological reserves. b. increase both ecological debt and ecological reserves. c. increase the overshoot of the global ecological footprint. d. lead to drastic declines in quality of life worldwide.