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ozone layer (Info)
ozone layer:- a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun (Princeton WordNet 3.1)
![Ecc Ozonesonde Observations At South Pole, Antarctica, During 1989 / W.d. Komhyr ... [et Al.]](/publice/covers_cache_jpg/21/5/9/2/73d06dc68b592afce378140b12e15ea8.jpg.jpg "Ecc Ozonesonde Observations At South Pole, Antarctica, During 1989 / W.d. Komhyr ... [et Al.]")
