Carbon Tetrachloride (CCl4) is a known and potent ozone-depleting substance (ODS), listed under the Montreal Protocol. Methane (CH4), however, is primarily a greenhouse gas and not considered a major direct ozone-depleting substance in the same way as halogenated compounds like CCl4, CFCs, and Halons. Its indirect effects on stratospheric ozone chemistry are complex.
Which of the above statements are correct? A) B) C) D) Methane and Carbon Tetrachloride () are responsible for ozone depletion.
Asked in KPSC KAS Prelims 2024 · Topic: Ozone Layer (Ozone Depleting Substances (ODS): Types, Sources, and Characteristics (e.g., CFCs, HCFCs, Halons))
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