Which of the following U.S. cities still experiences over 3 months of unhealthy air per year, with air quality index (AQI) values of greater than 100?
A) Los Angeles
B) Detroit
C) Dallas
D) New York City
E) Chicago
Answer: A
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Using these maps and your textbook, explain the patterns of average atmospheric pressure over the landmasses. Are the patterns of high and low pressure caused by thermal or dynamic forces?
a) January: __________________________ b) July: __________________________
Organic matter in soil is found principally in the
A. A horizon. B. R layer. C. B horizon. D. C horizon. E. O horizon
The arctic front
A) is relatively shallow. B) produces substantial amounts of snowfall. C) never penetrates further south than central Canada. D) does not produce a temperature difference when it passes an area.
Which of the following networks are common drainage patterns?
a. Dendritic, Arc-shaped, and Bird-shaped b. Dendritic, Radial, Rectangular, and Trellis c. Dendritic, Radial, Perpendicular, and Trellis d. Divergent, convergent, and parallel