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Ozone layer thinning is most pronounced over the Antractica because of a no of factors some of which are:

1) The CFC's released by humans are carried towards the Antarctica by the westerlies or the westerly winds where they cause ozone depletion.

2) the poles are the regions having low temperature and the ozone depleting reactions are only carried in temperature below -2o temperature that is on the polar stratospheric clouds. This attainment of temperature as low as 2o is only possible on the poles.

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14y ago

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