Multiple Choice QuestionWhile air pollution dispersion and dilution formerly were the strategies used to control air pollution, we now realize that Blank______.Multiple choice question.they are too expensive to be cost effectivethese practices are the cause of some of the worst pollution problemsair pollution is no longer a large-scale problem

Multiple Choice QuestionThe uncontrolled growth in cities in developing nations occurs with little planning and results in Blank______.Multiple choice question.major environmental problemsstricter pollution guidelinescleaner air

Multiple Choice QuestionIn the last 50 years, the Clear Air Act is responsible for combined emissions of the six criteria pollutants Blank______.Multiple choice question.decreasing by 78%decreasing by 10%barely changing at allactually increasing

Multiple Choice QuestionWind can carry air pollutants up to Blank______ of miles away from the original source of the pollution.Multiple choice question.hundredsthousandsmillions

Select all that applyWhat two approaches currently are the key to controlling air pollution?Multiple select question.Renewable energyDispersionDilutionConservation

Acid deposition, smog, and ozone depletion are all results ofMultiple choice question.air pollution.eutrophication.invasive species.water pollution.