La capa d'ozó
Example: La capa d'ozó protegeix la Terra dels raigs ultraviolats.
Definition
"La capa d'ozó" refers to the layer of ozone gas found in the Earth's stratosphere that absorbs and protects living organisms from harmful ultraviolet radiation from the sun.
Etymology
The term "la capa d'ozó" comes from Catalan, where "capa" means layer and "ozó" refers to ozone, a molecule composed of three oxygen atoms. The name ozone was coined in the 19th century from the Greek word 'ozein,' meaning 'to smell,' because of the distinct sharp odor detected during electrical discharges.
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"La capa d'ozó" appears in the Vocaplus list "Catalan - Environment - (A1-C2) - set 1", containing 100 commonly used words.
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