which is most likely a source of air pollution?\no littering\no cfcs\no oil spill\no runoff

which is most likely a source of air pollution?\no littering\no cfcs\no oil spill\no runoff
Answer
Answer:
B. CFCs
Brief Explanations:
CFCs (chlorofluorocarbons) are known to deplete the ozone - layer and are also air pollutants. Littering affects land and water more directly. Oil spills contaminate water bodies mainly. Runoff is related to water pollution from surface water carrying pollutants.