Which of the following statements is true of temperature inversions?
A. Temperature inversions occur when a layer of cold air prevents warm air from rising.
B. Temperature inversions exacerbate pollution problems.
C. Temperature inversions are temporary.
D. Temperature inversions cause cool air near the earth's surface to expand and rise, carrying pollutants higher into the troposphere.
E. Temperaturel inversions help prevent air pollution.
Answer: B
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Based on previous redlining policies, minority groups in U.S. cities are more likely to be
A) clustered in inner-city neighborhoods. B) dispersed throughout the city. C) clustered in suburbs. D) distributed uniformly in the city. E) distributed across the commuter zone.
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