Soil develops ____
A)faster on bedrock than it does on unconsolidated sediment
B)faster on unconsolidated sediment than it does on bedrock
C)often with no weathering involved
D)at similar rates throughout the world
E)a distinct purple color when it has a high iron content
B
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A 1990 ban by the United States on the import of tuna and shrimp that were caught in nets that also killed dolphins and sea turtles was
A. adopted by all of the industrialized nations in Europe and North America. B. overruled by the World Trade Organization resulting in the continued slaughter of dolphins and sea turtles. C. expanded to prevent the killing of whales for research. D. influential in getting many nations to better regulate their fishing practices.
List two common sources of rain gauge measurement error
What will be an ideal response?
Geologists best estimate the shear stress applied to erosion by wind by measuring
A) the depth of the air mass. B) the density of the air mass. C) the average particle size carried by the wind. D) the velocity of the wind.
Which pair of bases is linked together by two hydrogen bonds?
A) guanine and adenine B) adenine and cytosine C) guanine and thymine D) none of these