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Ozone Layer Facts
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Ozone Layer Composition
The ozone layer is mainly composed of ozone (O3) molecules, which are made of three oxygen atoms bound together.
Ozone Layer Importance
The ozone layer is crucial for life on Earth as it absorbs the majority of the harmful ultraviolet (UV) radiation from the Sun, particularly UVB rays.
Ozone Hole
The 'ozone hole' refers to the area of significantly decreased ozone in the stratosphere over Earth's polar regions, especially over Antarctica, first discovered in the 1980s.
Ozone Layer Depletion
Ozone depletion refers to the thinning and reduction in the total volume of the ozone layer, primarily caused by human-made chemicals like chlorofluorocarbons (CFCs).
Stratospheric Ozone vs. Ground-level Ozone
While stratospheric ozone (in the ozone layer) protects life on Earth from harmful UV radiation, ground-level ozone is a harmful air pollutant that can lead to respiratory problems and other health issues.
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