Which one of the following is depleting and causing thinning of ozone?
Correct answer: C. Chlorofluorocarbon
- A. Chlorine
- B. Bromine
- C. Chlorofluorocarbon
- D. Carbon
Explanation
Thinning in the ozone layer is caused by increasing concentrations of ozone-depleting chemicals - chlorofluorocarbons or CFCs (compounds with chlorine and/or fluorine attached to carbon) and to a lesser extent halons (similar compounds with bromine or iodine).
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About Pollution and Conservation
Pollution covers the sources and effects of air, water, soil, noise and thermal pollutants, including toxicity, biomagnification, eutrophication and global environmental change. Conservation focuses on protecting biodiversity through habitat preservation, sustainable resource use, protected areas, wildlife laws, and in situ and ex situ methods.
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