Over the past decade, the salinity of high-latitude oceans has ________ due to________
A) increased; ocean absorption of excess atmospheric carbon dioxide and associated coral die off
B) declined; coastal erosion caused by changes in stream flow and increased precipitation
C) increased; higher evaporation rates associated with climate change
D) declined; freshwater inputs from melting ice
E) increased; changes in thermohaline circulation associated with the Pacific Decadal Oscillation
Ans: D) declined; freshwater inputs from melting ice
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A vernacular region or area that is perceived as part of a local identity is best represented by
A) the Pacific Northwest. B) Duval County. C) 0 degrees longitude. D) Tin Pan Alley. E) the Boston-Washington DC megalopolis.
Doppler radar can detect motion directly
Indicate whether the statement is true or false
What happens when two oceanic plates collide?
A. The slowest plate is subducted. B. The youngest plate is subducted. C. The oldest plate is subducted. D. The fastest plate is subducted.
Contact metamorphic rocks are typically not foliated because
A. contact metamorphism occurs from heat and not from deformation due to stress. B. contact metamorphism does not produce minerals, such as the micas, which are needed for foliation to occur. C. the parent rock does not contain the correct type of minerals to produce foliation.