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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