Due to the depletion of the ozone layer at a rate of 7 percent per year, a large hole of 10 million square km has formed in it. Where is this hole located?
The massive ozone hole, which has formed due to chemical depletion, is located specifically above Antarctica. Every spring in the Southern Hemisphere, unique atmospheric conditions and cold temperatures over the South Pole trigger chemical reactions that rapidly destroy ozone. This results in a significant thinning of the layer, allowing more ultraviolet radiation to reach the surface in that region. ANSWER: (D) Above Antarctica
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The primary ozone hole is located over the continent of Antarctica. It forms annually during the Southern Hemisphere’s spring when sunlight returns to the region, activating chlorine and bromine compounds. These chemicals, primarily from human-made sources like chlorofluorocarbons, react with ozone on the surface of polar stratospheric clouds. Because the Antarctic vortex traps the air over the pole, the depletion is much more severe there than in the Arctic. Although international agreements have reduced the use of these chemicals, the hole remains a significant environmental concern, impacting the ecosystems of the surrounding Southern Ocean.
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