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QUIZ: Where is the 'ozone hole' located above Earth?

September 16 is celebrated every year at the United Nations' International Day for the Preservation of the Ozone Layer. It commemorates the date of the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987.

Find out how much you know about ozone. Try answering the questions below (please allow the quiz a few seconds to appear):