What best describes the third wave of internal migration in the U.S.?
A) demand for skilled and unskilled labor
B) African American movement from South
C) 50% increase in Rustbelt
D) 98 % increase in Sunbelt
E) agricultural mechanization reducing jobs
Answer: D
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Liquefaction occurs when
A) rock heats enough that it behaves like a liquid. B) rivers and water bodies overrun and dissolve earth materials during a quake. C) grains of earth materials settle downward during shaking and wet ground becomes fluid. D) grains rise up to the surface in groundwater during an earthquake and cause mass movement.
The ________ emits mainly ________ which is also called ________
A) Sun—shortwave radiation—radio waves B) Sun—longwave radiation—infrared C) Earth—shortwave radiation—infrared D) Earth—longwave radiation—thermal infrared E) Earth—longwave radiation—ultraviolet
The dry region of southern Argentina is called _____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following are true about factors that influence weathering?
A) Chemical weathering occurs fastest in cold or dry climates. B) Whether a slope faces toward or away from the sun is not an important factor influencing weathering. C) Soil and other weathering products tend to accumulate more on gentle slopes than on steep slopes. D) Time is not a critical factor in weathering because physical and chemical processes have not changed much through time.