HORTICULTURE DEVELOPMENT OF‐ FICER(HDO) -2015 Chlorofluorocarbons (CFCs) are synthetic chemical compounds that were widely used in refrigerants, aerosols, and solvents. When released into the atmosphere, CFCs rise to the stratosphere and, under the influence of ultraviolet (UV) radiation, break down to release chlorine atoms. These chlorine atoms then catalyze the destruction of ozone molecules, leading to the formation of the ozone hole. CO (Carbon Monoxide) is a major air pollutant from incomplete combustion. SO₂ (Sulfur Dioxide) is a major cause of acid rain. CH₄ (Methane) is a potent greenhouse gas.
Which among the following polluting agents is responsible for creating a hole in the ozone layer?
Asked in ASCO 2014 · Topic: Ozone Layer (Ozone Depleting Substances (ODS): Types, Sources, and Characteristics (e.g., CFCs, HCFCs, Halons))
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