ozone layer definition

  • noun:
    • an area of the top atmosphere, between about 15 and 30 kilometers (10 and 20 kilometers) in height, containing a relatively high focus of ozone that absorbs solar ultraviolet radiation in a wavelength range maybe not screened by other atmospheric elements. Also called ozonosphere.
    • A region of stratosphere, between 15 and 30 kilometres in altitude, containing a somewhat high concentration of ozone; it absorbs most solar power ultraviolet radiation
    • a layer when you look at the stratosphere (at approximately 20 kilometers) which has a concentration of ozone sufficient to prevent many ultraviolet radiation from sunlight

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