Which of the following is CORRECT regarding loess deposits?
A) They are principally composed of sands and gravels.
B) They are found only in the United States.
C) They only form following glacial activity.
D) They are formed of fine-grained clays, silts, and fine sands.
D
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Based on the daily air quality index released in the U.S., a value of 101 to 150 indicates
A) air quality is satisfactory and air pollution poses little to no risk. B) some pollutants may pose health concerns for unusually sensitive individuals. C) everyone may experience serious health effects from hazardous air conditions. D) the entire population may be affected by the air quality. E) at risk populations may be adversely affected, but the general public will likely not.
Regions in which earthquakes are common are also regions in which
A. the geomagnetic force is strong. B. hurricanes are common. C. many fossils are found. D. volcanoes are common.
A car that travels twice as fast as another when braking to a stop will skid
A) twice as far. B) four times as far. C) depends on the mass of the cars
The difference between in-migration and out-migration is the ________ ________ ________
Fill in the blank(s) with correct word