Counties in the US That Are Designated "Nonattainment" for Air

question 12

Multiple Choice

Counties in the US that are designated "nonattainment" for air pollution standards are located

• A) in the industrial areas of the Midwest.
• B) only in states with high urban populations.
• C) exclusively along coastlines of both oceans.
• D) predominantly in California and the East Coast.
• E) in states bordering Canada, but not states bordering Mexico.

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