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The ozone layer is located in the stratosphere, a region of the atmosphere that is about 10 to 50 kilometers above the Earth. The stratosphere consists of approximately 90 percent ozone. Ozone has the chemical formula O3.
Answers. Best Answer: ozone layer ozone layer or ozonosphere,region of the stratosphere containing relatively high concentrations of ozone, located at altitudes of 12â30 mi (19â48 km) above the earth's surface. Ozone in the ozone layer is formed by the action of solar ultraviolet light on oxygen.The ozone layer prevents most ultraviolet (UV) and other high-energy radiation from penetrating to the earth's surface but does allow through sufficient ultraviolet rays to support the activation of vitamin D in humans.est Answer: ozone layer ozone layer or ozonosphere,region of the stratosphere containing relatively high concentrations of ozone, located at altitudes of 12â30 mi (19â48 km) above the earth's surface.