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.
Answer: D
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Glaciers erode by the processes of ____
a. ablation and abrasion b. plucking and hydraulic action c. deflation and saltation d. plucking and abrasion
Well preserved remains of many tiny organisms extend the record of life back beyond 5 billion years
Indicate whether the statement is true or false
The term dry deposition refers to:
A) pollutants that fall to the ground as part of dust or smoke. B) pollution that is incorporated into snowflakes through the Bergeron process. C) pollutants left behind by evaporating rainfall. D) all pollution created through combustion of fossil fuels.
A single oscillation of the tides (from low tide to high tide and back again) takes about ________ hours
A) 24 B) 12 C) 6 D) 3 E) 2